USPTO trademark

HACKSTACK

AllowedUSPTOWord markClass 5

"HACKSTACK" is a word mark owned by Threshold Enterprises Ltd., filed at the USPTO on June 27, 2025. It has been allowed and covers class 5 (Pharmaceuticals).

Get this data via the API
Official USPTO record
HACKSTACK trademark as filed
As filed with the USPTO
Status
Allowed
Since June 22, 2026
Filed
June 27, 2025
Registered
Not yet
Expires
Not recorded
Application no.
99256990
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns HACKSTACK

The owner and representative on file with the office.

Owner

Threshold Enterprises Ltd.

Scotts Valley, United States

Representative

John P. Rynkiewicz

Arnold & Porter Kaye Scholer LLP

Goods and services

What the mark covers

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

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Notice of approval of extension request e-mailed
  2. Sou extension 1 granted
  3. Sou extension 1 filed
  4. Sou teas extension received
  5. Noa e-mailed - sou required from applicant
  6. Official gazette publication confirmation e-mailed
  7. Published for opposition
  8. Notification of notice of publication e-mailed
  9. Approved for pub - principal register
  10. Assigned to examiner

3 earlier steps on the official record.

FAQ

About HACKSTACK

Who owns the trademark "HACKSTACK"?

The USPTO trademark "HACKSTACK" (application 99256990) is owned by Threshold Enterprises Ltd.

What is the status of "HACKSTACK"?

Its status at the USPTO is: allowed.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull HACKSTACK 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_019d2aeb-6e3a-74ab-bc92-32f1e25aa9db
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2aeb-6e3a-74ab-bc92-32f1e25aa9db",
  "object": "trademark",
  "mark_text": "HACKSTACK",
  "status": {
    "primary": "pending",
    "stage": "allowed"
  },
  "office_code": "US",
  "application_number": "99256990",
  "filing_date": "2025-06-27",
  "nice_classes": [
    5
  ],
  "owners": [
    {
      "name": "Threshold Enterprises Ltd.",
      "entity_id": null
    }
  ]
}