Opposition · USPTO

Opposition 91298046

PendingUSPTO

Opposition 91298046 at USPTO between Monster, Inc. and David J. Siegfried, over the mark CALHOUNMONSTER, filed Apr 2, 2025. Status in the office record: pending.

View CALHOUNMONSTERGet this data via the API
Status
Pending
Filed
Apr 2, 2025
Marks involved
17
Parties

Who is involved

The parties as named in the office record.

Opponent

Monster, Inc.

Company trademarks
Respondent

David J. Siegfried

Timeline

How the case has moved

Dates from the USPTO record and the CALHOUNMONSTER filing.

  1. CALHOUNMONSTER filed

    Application 98194713 filed at the USPTO.

  2. Opposition filed

    Monster, Inc. started opposition 91298046 at USPTO against CALHOUNMONSTER.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 16 marks the challenger relies on.

MarkRoleApplicationOffice
CALHOUNMONSTERContested98194713USPTO
MONSTER POWERRelied on75232124USPTO
MONSTERRelied on76197156USPTO
MONSTER POWERRelied on76360257USPTO
MONSTERRelied on76422059USPTO
MONSTERS LIVE FOREVERRelied on77303994USPTO
MONSTER FLATSCREENRelied on77337012USPTO
M MONSTERRelied on77394667USPTO
MONSTERRelied on77820873USPTO
MONSTER ROCKRelied on78293727USPTO
MONSTEROUSRelied on78333930USPTO
PURE MONSTERRelied on85698489USPTO

+5 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_84f90495-220d-4e57-8db9-f3708a15d945
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_84f90495-220d-4e57-8db9-f3708a15d945",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91298046",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2025-04-02",
  "parties": [
    {
      "name": "Monster, Inc.",
      "role": "opponent"
    },
    {
      "name": "David J. Siegfried",
      "role": "respondent"
    }
  ]
}