Opposition · USPTO

Opposition 91308204

OtherUSPTO

Opposition 91308204 at USPTO between McDonald's Corporation and Zaixi Liu, over the mark MCZLO, filed Jun 18, 2026. Status in the office record: other.

View MCZLOGet this data via the API
Status
Other
Result
Other
Filed
Jun 18, 2026
Marks involved
18
Parties

Who is involved

The parties as named in the office record.

Opponent

McDonald's Corporation

Company trademarks
Respondent

Zaixi Liu

Timeline

How the case has moved

Dates from the USPTO record and the MCZLO filing.

  1. MCZLO filed

    Application 99554589 filed at the USPTO.

  2. Opposition filed

    McDonald's Corporation started opposition 91308204 at USPTO against MCZLO.
Marks

Marks involved

1 contested mark, 17 marks the challenger relies on.

MarkRoleApplicationOffice
MCZLOContested99554589USPTO
MCDONALD'SRelied on72119302USPTO
MC CHICKENRelied on73076294USPTO
MC DOUBLERelied on73370485USPTO
MCDONALDSRelied on73397249USPTO
MCDONALDSRelied on73397665USPTO
MCMUFFINRelied on73537686USPTO
MCDONALDS.COMRelied on74636671USPTO
MCFLURRYRelied on75408400USPTO
MCNUGGETRelied on77822521USPTO
MCGRIDDLESRelied on78115190USPTO
MCDONALD'S ALL AMERICANRelied on78135408USPTO

+6 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_29d838bf-b546-41d3-8717-baa503d924dd
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_29d838bf-b546-41d3-8717-baa503d924dd",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91308204",
  "status": "other",
  "office_code": "US",
  "filed_date": "2026-06-18",
  "parties": [
    {
      "name": "MCDONALD'S CORPORATION",
      "role": "opponent"
    },
    {
      "name": "Zaixi Liu",
      "role": "respondent"
    }
  ]
}