Opposition · USPTO

Opposition 91306807

OtherUSPTO

Opposition 91306807 at USPTO between Caterpillar Inc. and Changbin Zhan, over the mark FOFOCAT, filed Apr 22, 2026. Status in the office record: other.

View FOFOCATGet this data via the API
Status
Other
Result
Other
Filed
Apr 22, 2026
Marks involved
8
Parties

Who is involved

The parties as named in the office record.

Opponent

Caterpillar Inc.

Respondent

Changbin Zhan

Timeline

How the case has moved

Dates from the USPTO record and the FOFOCAT filing.

  1. FOFOCAT filed

    Application 99424450 filed at the USPTO.

  2. Opposition filed

    Caterpillar Inc. started opposition 91306807 at USPTO against FOFOCAT.
Marks

Marks involved

1 contested mark, 7 marks the challenger relies on.

MarkRoleApplicationOffice
FOFOCATContested99424450USPTO
CATRelied on71575190USPTO
CATRelied on72174081USPTO
CATRelied on77289081USPTO
CATRelied on78981305USPTO
CATRelied on85318067USPTO
CATRelied on85318073USPTO
CATRelied on86976332USPTO
API

Get this data via the API

Every fact on this page comes from the Signa API. Track oppositions and cancellations on any mark with one request.

  • GET/v1/proceedings/{id}

    Parties, dates, outcome and every mark in the case

  • GET/v1/proceedings?trademark_id={trademark_id}

    Every proceeding on a mark

Get API keyView docs
GET /v1/proceedings/{id}
ID=prc_d4bc5d2e-06dd-4166-90ff-6b2f40d87339
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_d4bc5d2e-06dd-4166-90ff-6b2f40d87339",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91306807",
  "status": "other",
  "office_code": "US",
  "filed_date": "2026-04-22",
  "parties": [
    {
      "name": "Caterpillar Inc.",
      "role": "opponent"
    },
    {
      "name": "Changbin Zhan",
      "role": "respondent"
    }
  ]
}