Opposition · USPTO

Opposition 91306191

OtherUSPTO

Opposition 91306191 at USPTO between Duke University and John James Clendening, over the mark THE DUKES OF DALLAS, filed Mar 27, 2026. Status in the office record: other.

View THE DUKES OF DALLASGet this data via the API
Status
Other
Result
Other
Filed
Mar 27, 2026
Marks involved
19
Parties

Who is involved

The parties as named in the office record.

Opponent

Duke University

Company trademarks
Respondent

John James Clendening

Timeline

How the case has moved

Dates from the USPTO record and the THE DUKES OF DALLAS filing.

  1. THE DUKES OF DALLAS filed

    Application 99181274 filed at the USPTO.

  2. Opposition filed

    Duke University started opposition 91306191 at USPTO against THE DUKES OF DALLAS.
Marks

Marks involved

1 contested mark, 18 marks the challenger relies on.

MarkRoleApplicationOffice
THE DUKES OF DALLASContested99181274USPTO
DUKE UNIVERSITYRelied on74208934USPTO
DUKE UNIVERSITYRelied on74208935USPTO
DKERelied on74693793USPTO
DKERelied on74694684USPTO
DUKERelied on75347293USPTO
DUKERelied on75567914USPTO
D KERelied on75976140USPTO
DKERelied on75976141USPTO
DUKIERelied on78674480USPTO
DUKERelied on78944306USPTO
DUKERelied on78944344USPTO

+7 more marks in this case

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_51bfc819-095d-4a69-b8b0-f63b28bd46f1
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_51bfc819-095d-4a69-b8b0-f63b28bd46f1",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91306191",
  "status": "other",
  "office_code": "US",
  "filed_date": "2026-03-27",
  "parties": [
    {
      "name": "Duke University",
      "role": "opponent"
    },
    {
      "name": "John James Clendening",
      "role": "respondent"
    }
  ]
}