USPTO trademark

HERBSTACK

Under examinationUSPTOWord markClass 5

"HERBSTACK" is a word mark owned by Corkflow LLC, filed at the USPTO on October 19, 2026. It is under examination and covers class 5 (Pharmaceuticals).

Get this data via the API
Official USPTO record
HERBSTACK trademark as filed
As filed with the USPTO
Status
Under examination
Since October 19, 2026
Filed
October 19, 2026
Registered
Not yet
Expires
Not recorded
Application no.
50168429
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns HERBSTACK

The owner and representative on file with the office.

Owner

Corkflow LLC

Wailuku, United States

Representative

Richard B. Biagi

Neal & McDevitt, LLC

Goods and services

What the mark covers

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

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Application filing receipt mailed
  2. New application office supplied data entered
  3. New application entered
FAQ

About HERBSTACK

Who owns the trademark "HERBSTACK"?

The USPTO trademark "HERBSTACK" (application 50168429) is owned by Corkflow LLC.

What is the status of "HERBSTACK"?

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 HERBSTACK 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_01a1596f-cd64-76c8-9e63-1dbb381fea55
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a1596f-cd64-76c8-9e63-1dbb381fea55",
  "object": "trademark",
  "mark_text": "HERBSTACK",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50168429",
  "filing_date": "2026-10-19",
  "nice_classes": [
    5
  ],
  "owners": [
    {
      "name": "CORKFLOW LLC",
      "entity_id": null
    }
  ]
}