Trademark History

Paginated prosecution event timeline for a trademark

GET /v1/trademarks/{id}/history

Trademark History

cURL

curl --request GET \
  --url https://api.signa.so/v1/trademarks/{id}/history \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.signa.so/v1/trademarks/{id}/history"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.signa.so/v1/trademarks/{id}/history', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.signa.so/v1/trademarks/{id}/history",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.signa.so/v1/trademarks/{id}/history"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.signa.so/v1/trademarks/{id}/history")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.signa.so/v1/trademarks/{id}/history")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

Response

{
  "object": "list",
  "data": [
    {
      "id": "evt_550e8400-e29b-41d4-a716-446655440000",
      "object": "event",
      "event_date": "2024-09-18",
      "event_type": "registration",
      "description": "Registration certificate issued",
      "raw_code": "RN",
      "raw_label": "REGISTERED",
      "event_scope": "right",
      "status_after_event": "registered",
      "nice_class_number": null,
      "territory_code": null,
      "source_identifier": "uspto-statusview-2024-09-18",
      "sequence_no": 1
    },
    {
      "id": "evt_7d4e1f2a-3b8c-4d0e-9f1a-2b3c4d5e6f7a",
      "object": "event",
      "event_date": "2024-02-06",
      "event_type": "publication",
      "description": "Published for opposition",
      "raw_code": "PB",
      "raw_label": "PUBLISHED FOR OPPOSITION",
      "event_scope": "right",
      "status_after_event": "published",
      "nice_class_number": null,
      "territory_code": null,
      "source_identifier": null,
      "sequence_no": 1
    },
    {
      "id": "evt_a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "object": "event",
      "event_date": "2023-04-12",
      "event_type": "filing",
      "description": "Application filed",
      "raw_code": "NA",
      "raw_label": "NEW APPLICATION",
      "event_scope": null,
      "status_after_event": "filed",
      "nice_class_number": null,
      "territory_code": null,
      "source_identifier": null,
      "sequence_no": 1
    }
  ],
  "has_more": false,
  "pagination": {
    "cursor": null
  },
  "request_id": "req_cV2nL8pQ"
}

Overview

Returns the prosecution event timeline for a trademark, sourced from office records and normalized. Events cover filings, examinations, publications, registrations, renewals, assignments, oppositions, status changes, and ad-hoc letters from the office.

Each event carries the canonical Signa event_type, the office’s raw code and label, the event scope (right, class, designation, proceeding, or other), and an optional status_after_event snapshot. Use it to build prosecution timelines, audit ownership transfers, and reconcile renewal cycles.

Results are paginated and returned in reverse chronological order (newest first).

Path Parameters

id · string · required

Trademark ID prefixed with tm_ (e.g. tm_8kLm2nPq).

Query Parameters

event_type · string

Filter by one or more canonical event type codes, comma-separated. Example: event_type=registration,renewal. Common values: filing, examination_start, office_action, publication, opposition_filed, registration, renewal, assignment, name_change, cancellation_decided.

event_scope · string

Filter by event scope. One of right, class, designation, proceeding, other.

event_date_gte · string

Earliest event date (inclusive), ISO YYYY-MM-DD.

event_date_lt · string

Latest event date (exclusive), ISO YYYY-MM-DD.

limit · integer · default: "20"

Page size, between 1 and 100.

cursor · string

Opaque cursor returned in the previous response’s pagination.cursor.

Response

object · string

Always list.

data · object[]

Show Event object

id · string

Event ID prefixed with evt_ (e.g. evt_550e8400-e29b-41d4-a716-446655440000).

object · string

Always event.

event_date · string

ISO date when the event occurred.

event_type · string

Canonical Signa event type code.

description · string | null

Human-readable description.

raw_code · string | null

Office-native event code as received from the source.

raw_label · string | null

Office-native event label as received from the source.

event_scope · string | null

Scope of the event: right, class, designation, proceeding, or other. May be null for many events, since not all events have a scope assigned.

status_after_event · string | null

Status stage of the mark immediately after this event, when the office reports it.

nice_class_number · integer | null

Nice class number when the event is class-scoped.

territory_code · string | null

Designated territory code when the event is designation-scoped.

source_identifier · string | null

Office-side identifier for the event (e.g. action key, gazette reference).

sequence_no · integer | null

Office-assigned sequence number used to deduplicate events on the same date.

has_more · boolean

Whether more events are available.

pagination · object

Cursor for the next page.

request_id · string

Unique request identifier for support and debugging.

Response

{
  "object": "list",
  "data": [
    {
      "id": "evt_550e8400-e29b-41d4-a716-446655440000",
      "object": "event",
      "event_date": "2024-09-18",
      "event_type": "registration",
      "description": "Registration certificate issued",
      "raw_code": "RN",
      "raw_label": "REGISTERED",
      "event_scope": "right",
      "status_after_event": "registered",
      "nice_class_number": null,
      "territory_code": null,
      "source_identifier": "uspto-statusview-2024-09-18",
      "sequence_no": 1
    },
    {
      "id": "evt_7d4e1f2a-3b8c-4d0e-9f1a-2b3c4d5e6f7a",
      "object": "event",
      "event_date": "2024-02-06",
      "event_type": "publication",
      "description": "Published for opposition",
      "raw_code": "PB",
      "raw_label": "PUBLISHED FOR OPPOSITION",
      "event_scope": "right",
      "status_after_event": "published",
      "nice_class_number": null,
      "territory_code": null,
      "source_identifier": null,
      "sequence_no": 1
    },
    {
      "id": "evt_a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "object": "event",
      "event_date": "2023-04-12",
      "event_type": "filing",
      "description": "Application filed",
      "raw_code": "NA",
      "raw_label": "NEW APPLICATION",
      "event_scope": null,
      "status_after_event": "filed",
      "nice_class_number": null,
      "territory_code": null,
      "source_identifier": null,
      "sequence_no": 1
    }
  ],
  "has_more": false,
  "pagination": {
    "cursor": null
  },
  "request_id": "req_cV2nL8pQ"
}

Code Examples

cURL

curl -G "https://api.signa.so/v1/trademarks/tm_8kLm2nPq/history" \
  -H "Authorization: Bearer sig_YOUR_KEY" \
  --data-urlencode "event_type=registration,renewal" \
  --data-urlencode "limit=20"

import { Signa } from "@signa-so/sdk";

const signa = new Signa({ api_key: process.env.SIGNA_API_KEY });

const history = await signa.trademarks.history("tm_8kLm2nPq", {
  event_type: "registration,renewal",
  limit: 20,
});

for await (const event of history) {
  console.log(event.event_date, event.event_type, event.description);
}

Errors

Status	Type	Description
400	validation_error	Invalid id format, malformed date, or event_date_gte greater than event_date_lt
401	unauthorized	Missing or invalid API key
403	forbidden	API key lacks the trademarks:read scope
404	not_found	Trademark ID does not exist
429	rate_limited	Rate limit exceeded

Related Endpoints

• Get Trademark: current trademark data; use this sub-resource endpoint to fetch event history
• Trademark Changes: version-level field-by-field change log