Opposition · USPTO

Opposition 91301800

OtherUSPTO

Opposition 91301800 at USPTO between Guess? IP Holder L.P. and Daniella Leoni, over the mark GUESS?, filed Sep 18, 2025. Status in the office record: other.

View GUESS?Get this data via the API
Status
Other
Result
Other
Filed
Sep 18, 2025
Marks involved
10
Parties

Who is involved

The parties as named in the office record.

Opponent

Guess? IP Holder L.P.

Company trademarks
Respondent

Daniella Leoni

Timeline

How the case has moved

Dates from the USPTO record and the GUESS? filing.

  1. GUESS? filed

    Application 99023000 filed at the USPTO.

  2. Opposition filed

    Guess? IP Holder L.P. started opposition 91301800 at USPTO against GUESS?.
Marks

Marks involved

1 contested mark, 9 marks the challenger relies on.

MarkRoleApplicationOffice
GUESS?Contested99023000USPTO
GUESS?Relied on73396208USPTO
GUESSRelied on73606665USPTO
GUESSRelied on74067648USPTO
GUESSRelied on74338911USPTO
GUESSRelied on75136597USPTO
GUESS?Relied on75440869USPTO
GUESSRelied on75645430USPTO
GUESSRelied on85216171USPTO
GUESS?Relied on85656100USPTO
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_3a62c407-2aa2-4033-892e-10fba120f214
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_3a62c407-2aa2-4033-892e-10fba120f214",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91301800",
  "status": "other",
  "office_code": "US",
  "filed_date": "2025-09-18",
  "parties": [
    {
      "name": "Guess? IP Holder L.P.",
      "role": "opponent"
    },
    {
      "name": "Daniella Leoni",
      "role": "respondent"
    }
  ]
}