USPTO trademark

LEYLEFGO

Opposition periodUSPTOWord and designClass 5Class 42Class 44

"LEYLEFGO" is a word and design mark owned by Praxis Precision Medicines, Inc., filed at the USPTO on May 28, 2026. It is in its opposition period and covers classes 5, 42 and 44.

View Praxis Precision Medicines, Inc. portfolioGet this data via the API
Official USPTO record
LEYLEFGO trademark as filed
As filed with the USPTO
Status
Opposition period
Since October 27, 2026
Filed
May 28, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99851791
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word and design
3 classes
Ownership

Who owns LEYLEFGO

The owner on file, matched to the company behind it. Every owner-name spelling for that company is grouped on its page.

Owner

Praxis Precision Medicines, Inc.

PRAX · Boston, United States

34 trademarks in the portfolioView company

Representative

Michael H. Jacobs

Crowell & Moring LLP

Goods and services

What the mark covers

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

History

What has happened so far

Steps recorded by the USPTO, newest first.

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

About LEYLEFGO

Who owns the trademark "LEYLEFGO"?

The USPTO trademark "LEYLEFGO" (application 99851791) is owned by Praxis Precision Medicines, Inc.

What is the status of "LEYLEFGO"?

Its status at the USPTO is: opposition period.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull LEYLEFGO 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_019e774c-fc3d-7602-8c86-9b6b0a77d2da
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019e774c-fc3d-7602-8c86-9b6b0a77d2da",
  "object": "trademark",
  "mark_text": "LEYLEFGO",
  "status": {
    "primary": "pending",
    "stage": "pending_opposition"
  },
  "office_code": "US",
  "application_number": "99851791",
  "filing_date": "2026-05-28",
  "nice_classes": [
    5,
    42,
    44
  ],
  "owners": [
    {
      "name": "Praxis Precision Medicines, Inc.",
      "entity_id": "ent_019f285f-e24b-772c-89c8-90ec2cbdb8e6"
    }
  ]
}