USPTO trademark

SISU

Under examinationUSPTOWord markClass 11

"SISU" is a word mark owned by SAUNA360 Inc., filed at the USPTO on October 20, 2025. It is under examination and covers class 11 (Environmental Control Apparatus).

Get this data via the API
Official USPTO record
SISU trademark as filed
As filed with the USPTO
Status
Under examination
Since September 4, 2026
Filed
October 20, 2025
Registered
Not yet
Expires
Not recorded
Application no.
99451540
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns SISU

The owner and representative on file with the office.

Owner

SAUNA360 Inc.

Cokato, United States

Representative

Michael J. Druzinski

Masco Corporation

Goods and services

What the mark covers

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

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Notification of letter of suspension e-mailed
  2. Letter of suspension e-mailed
  3. Suspension letter written
  4. Teas/email correspondence entered
  5. Correspondence received in law office
  6. Teas response to office action received
  7. Teas withdrawal of attorney received-firm retains
  8. Teas change of correspondence received
  9. Attorney/dom.rep.revoked and/or appointed
  10. Teas revoke/app/change addr of atty/dom rep received

9 earlier steps on the official record.

FAQ

About SISU

Who owns the trademark "SISU"?

The USPTO trademark "SISU" (application 99451540) is owned by SAUNA360 Inc.

What is the status of "SISU"?

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 SISU 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_019d2b49-2132-76ab-8d47-79d5731894f1
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2b49-2132-76ab-8d47-79d5731894f1",
  "object": "trademark",
  "mark_text": "SISU",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "99451540",
  "filing_date": "2025-10-20",
  "nice_classes": [
    11
  ],
  "owners": [
    {
      "name": "SAUNA360 INC.",
      "entity_id": null
    }
  ]
}