USPTO trademark

C

RegisteredUSPTOWord and designClass 40Class 42Class 44

"C" is a word and design mark owned by Cellafa Bioscience Inc., filed at the USPTO on September 18, 2025. It is registered and covers classes 40, 42 and 44.

Get this data via the API
Official USPTO record
C trademark as filed
As filed with the USPTO
Status
Registered
Since October 13, 2026
Filed
September 18, 2025
Registered
October 13, 2026
Expires
Not recorded
Application no.
99400442
Registration no.
8505729
Office
USPTO
United States Patent and Trademark Office
Mark type
Word and design
3 classes
Ownership

Who owns C

The owner and representative on file with the office.

Owner

Cellafa Bioscience Inc.

Yushima, Bunkyo-Ku, Tokyo, Japan

Representative

Christopher Bolinger

Goods and services

What the mark covers

The products and services C is filed for, grouped by Nice class.

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Notice of registration confirmation emailed
  2. Registered-principal register
  3. Notice of acceptance of statement of use e-mailed
  4. Allowed principal register - sou accepted
  5. Statement of use processing complete
  6. Case assigned to intent to use paralegal
  7. Notice of approval of extension request e-mailed
  8. Use amendment filed
  9. Teas statement of use received
  10. Sou extension 1 granted

10 earlier steps on the official record.

FAQ

About C

Who owns the trademark "C"?

The USPTO trademark "C" (application 99400442) is owned by Cellafa Bioscience Inc.

What is the status of "C"?

Its status at the USPTO is: registered.

When was "C" registered?

It was registered on October 13, 2026.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull C and marks like it into your own product with one request.

  • GET/v1/trademarks/{id}

    The full record: owners, classes, dates and images

  • GET/v1/trademarks/{id}/events

    Every step in the office history

  • GET/v1/proceedings?trademark_id={id}

    Oppositions and cancellations against the mark

Get API keyView docs
GET /v1/trademarks/{id}
ID=tm_019d2b2f-b91f-74c6-929d-ff0945699e24
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2b2f-b91f-74c6-929d-ff0945699e24",
  "object": "trademark",
  "mark_text": "C",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "99400442",
  "filing_date": "2025-09-18",
  "nice_classes": [
    40,
    42,
    44
  ],
  "owners": [
    {
      "name": "CELLAFA BIOSCIENCE INC.",
      "entity_id": null
    }
  ]
}