USPTO trademark

CIRCUFLEX

AllowedUSPTOWord markClass 41

"CIRCUFLEX" is a word mark owned by Karl Brown, filed at the USPTO on February 17, 2026. It has been allowed and covers class 41 (Education and Entertainment).

Get this data via the API
Official USPTO record
CIRCUFLEX trademark as filed
As filed with the USPTO
Status
Allowed
Since September 8, 2026
Filed
February 17, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99657211
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns CIRCUFLEX

The owner and representative on file with the office.

Owner

Karl Brown

Cincinnati, United States

Representative

Mark Eric Musekamp

Keating Muething & Klekamp PLL

Goods and services

What the mark covers

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

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Noa e-mailed - sou required from applicant
  2. Official gazette publication confirmation e-mailed
  3. Published for opposition
  4. Notification of notice of publication e-mailed
  5. Approved for pub - principal register
  6. Assigned to examiner
  7. New application office supplied data entered
  8. Application filing receipt mailed
  9. New application entered
FAQ

About CIRCUFLEX

Who owns the trademark "CIRCUFLEX"?

The USPTO trademark "CIRCUFLEX" (application 99657211) is owned by Karl Brown.

What is the status of "CIRCUFLEX"?

Its status at the USPTO is: allowed.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull CIRCUFLEX 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_019d2ba8-2bdc-73f9-9b60-92a990ad1659
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2ba8-2bdc-73f9-9b60-92a990ad1659",
  "object": "trademark",
  "mark_text": "CIRCUFLEX",
  "status": {
    "primary": "pending",
    "stage": "allowed"
  },
  "office_code": "US",
  "application_number": "99657211",
  "filing_date": "2026-02-17",
  "nice_classes": [
    41
  ],
  "owners": [
    {
      "name": "Karl Brown",
      "entity_id": null
    }
  ]
}