USPTO trademark

PROOF OF THOUGHT

Under examinationUSPTOWord markClass 42

"PROOF OF THOUGHT" is a word mark owned by Haggai Goldfarb, filed at the USPTO on January 7, 2026. It is under examination and covers class 42 (Computer and Scientific Services).

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Official USPTO record
PROOF OF THOUGHT trademark as filed
As filed with the USPTO
Status
Under examination
Since October 30, 2026
Filed
January 7, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99582309
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns PROOF OF THOUGHT

The owner and representative on file with the office.

Owner

Haggai Goldfarb

Kirkland, United States

Representative

Shawn T. Gordon

Downs Rachlin Martin PLLC

Goods and services

What the mark covers

The products and services PROOF OF THOUGHT is filed for, grouped by Nice class.

  • Providing temporary use of online non-downloadable software for cryptographically sealing, timestamping, chaining, custodially preserving, and verifying original human cognitive works, ideas, inventions, creative works, and intellectual artifacts; providing cryptographic custody and evidentiary verification services; software as a service (SaaS) services featuring software for establishing temporal priority, authorship provenance, continuity of human ideation, and origination verification; providing online platforms, protocols, and infrastructures for establishing, preserving, verifying, and licensing provenance, priority, and authorship of human intellectual works and creative origination.

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Teas/email correspondence entered
  2. Notice of revival - e-mailed
  3. Correspondence received in law office
  4. Teas response to office action received
  5. Petition to revive-granted
  6. Teas petition to revive received
  7. Abandonment notice e-mailed - failure to respond
  8. Abandonment - failure to respond or late response
  9. Notification of non-final action e-mailed
  10. Non-final action e-mailed

5 earlier steps on the official record.

FAQ

About PROOF OF THOUGHT

Who owns the trademark "PROOF OF THOUGHT"?

The USPTO trademark "PROOF OF THOUGHT" (application 99582309) is owned by Haggai Goldfarb.

What is the status of "PROOF OF THOUGHT"?

Its status at the USPTO is: under examination.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull PROOF OF THOUGHT 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_019d2b84-836d-710a-b8b0-813f80c16791
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2b84-836d-710a-b8b0-813f80c16791",
  "object": "trademark",
  "mark_text": "PROOF OF THOUGHT",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "99582309",
  "filing_date": "2026-01-07",
  "nice_classes": [
    42
  ],
  "owners": [
    {
      "name": "Haggai Goldfarb",
      "entity_id": null
    }
  ]
}