Opposition · USPTO

Opposition 91092554

OtherUSPTO

Opposition 91092554 at USPTO between Cell Therapeutics, Inc. and Cytotherapeutics, Inc., over the mark CTI, filed Sep 8, 1993. Status in the office record: other.

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Status
Other
Result
Other
Filed
Sep 8, 1993
Marks involved
2
Parties

Who is involved

The parties as named in the office record.

Opponent

Cell Therapeutics, Inc.

Respondent

Cytotherapeutics, Inc.

Timeline

How the case has moved

Dates from the USPTO record and the CTI filing.

  1. CTI filed

    Application 74342726 filed at the USPTO.

  2. Opposition filed

    Cell Therapeutics, Inc. started opposition 91092554 at USPTO against CTI.
Marks

Marks involved

1 contested mark, 1 mark the challenger relies on.

MarkRoleApplicationOffice
CTIContested74342726USPTO
CTIRelied on74424879USPTO
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_e0c7d28a-1f73-4194-a808-96285feec17d
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_e0c7d28a-1f73-4194-a808-96285feec17d",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91092554",
  "status": "other",
  "office_code": "US",
  "filed_date": "1993-09-08",
  "parties": [
    {
      "name": "CELL THERAPEUTICS, INC.",
      "role": "opponent"
    },
    {
      "name": "CYTOTHERAPEUTICS, INC.",
      "role": "respondent"
    }
  ]
}