USPTO trademark

PERSEPHONE

RegisteredUSPTOWord markClass 5

"PERSEPHONE" is a word mark owned by Persephone Biosciences, Inc., filed at the USPTO on November 19, 2024. It is registered and covers class 5 (Pharmaceuticals).

Get this data via the API

Data current as of June 30, 2026Official USPTO record

As filed with the USPTO

Status: Registered; Since June 30, 2026
Filed: November 19, 2024
Registered: June 30, 2026
Expires: Not recorded
Application no.: 98861712
Registration no.: 8327512
Office: USPTO; United States Patent and Trademark Office
Mark type: Word mark; 1 class

Ownership

Who owns PERSEPHONE

The owner and representative on file with the office.

Owner

Persephone Biosciences, Inc.

San Diego, United States

Representative

Allyson M. Martin

Greer, Burns and Crain Ltd.

Goods and services

What the mark covers

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

05Class 5 · Pharmaceuticals
Probiotic supplements

History

What has happened so far

Steps recorded by the USPTO, newest first.

June 30, 2026Notice of registration confirmation emailed
June 30, 2026Registered-principal register
June 5, 2026Notice of acceptance of statement of use e-mailed
June 5, 2026Allowed principal register - sou accepted
May 25, 2026Statement of use processing complete
May 25, 2026Case assigned to intent to use paralegal
January 22, 2026Use amendment filed
January 22, 2026Teas statement of use received
August 12, 2025Noa e-mailed - sou required from applicant
June 17, 2025Official gazette publication confirmation e-mailed

6 earlier steps on the official record.

FAQ

About PERSEPHONE

Who owns the trademark "PERSEPHONE"?

The USPTO trademark "PERSEPHONE" (application 98861712) is owned by Persephone Biosciences, Inc.

What is the status of "PERSEPHONE"?

Its status at the USPTO is: registered.

When was "PERSEPHONE" registered?

It was registered on June 30, 2026.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull PERSEPHONE 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 key View docs

GET /v1/trademarks/{id}

ID=tm_019d2a1a-694f-7528-b5eb-eb07b7ffdf80
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "tm_019d2a1a-694f-7528-b5eb-eb07b7ffdf80",
  "object": "trademark",
  "mark_text": "PERSEPHONE",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "98861712",
  "filing_date": "2024-11-19",
  "nice_classes": [
    5
  ],
  "owners": [
    {
      "name": "Persephone Biosciences, Inc.",
      "entity_id": null
    }
  ]
}