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API reference

Trademark monitoring

Track new applications, registrations and upcoming expiry dates.

GET /api/v1/trademarks/changes
Access
Scope trademarks
Cost
1 unit per row in the response

kind=filed and kind=registered show what has already happened. kind=expiring looks ahead. Use until to set the horizon, six months for example.

Parameters

Parameters not marked as required may be omitted.

NameTypeWhat the field does
kind
string filed, registered or expiring. Default: filed
since
date Start at this date, inclusive.
until
date End at this date, inclusive.
limit
integer How many rows the page should contain, from 1 to 100. Default: 50
cursor
string Continue from next_cursor in the previous response.

Request and response

The example shows a request against the production environment and a successful response.

Request
curl "https://firmainfo.se/api/v1/trademarks/changes?kind=expiring&until=2027-01-01&limit=1" \
  -H "Authorization: Bearer $FIRMAINFO_API_KEY"
Response
{
  "kind": "expiring",
  "data": [
    {
      "application_number": "2016-05512",
      "word_text": "NORDBRAND",
      "status": "Registered",
      "expiry_date": "2026-12-04",
      "company": { "id": "5565550123", "name": "Nordbrand AB", "registration_number": "556555-0123" }
    }
  ],
  "has_more": true,
  "next_cursor": "MjAyNi0xMi0wNHwxMjM0NTY="
}

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