Opposition · USPTO

Opposition 91308826

PendingUSPTO

Opposition 91308826 at USPTO between eBay Inc. and Li Xu, over the mark BASEBAY, filed Jul 14, 2026. Status in the office record: pending.

View BASEBAYGet this data via the API
Status
Pending
Filed
Jul 14, 2026
Marks involved
20
Parties

Who is involved

The parties as named in the office record.

Opponent

eBay Inc.

Company trademarks
Respondent

Li Xu

Timeline

How the case has moved

Dates from the USPTO record and the BASEBAY filing.

  1. BASEBAY filed

    Application 99411142 filed at the USPTO.

  2. Opposition filed

    eBay Inc. started opposition 91308826 at USPTO against BASEBAY.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 19 marks the challenger relies on.

MarkRoleApplicationOffice
BASEBAYContested99411142USPTO
EBAYRelied on75391661USPTO
EBAYRelied on75620479USPTO
EBAYRelied on75621219USPTO
EBAYRelied on75625390USPTO
EBAYRelied on75981021USPTO
EBAYRelied on75983141USPTO
EBAYRelied on76022871USPTO
EBAYRelied on76271411USPTO
EBAYRelied on76271424USPTO
EBAYRelied on76975318USPTO
EBAYRelied on78384624USPTO

+8 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_fac05675-6f34-433a-bace-c43a4c1d3a3b
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_fac05675-6f34-433a-bace-c43a4c1d3a3b",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91308826",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-07-14",
  "parties": [
    {
      "name": "eBay Inc.",
      "role": "opponent"
    },
    {
      "name": "Li Xu",
      "role": "respondent"
    }
  ]
}