USPTO trademark

EXTET

Opposition periodUSPTOWord markClass 9

"EXTET" is a word mark owned by Semiconductor Energy Laboratory Co., Ltd., filed at the USPTO on May 19, 2026. It is in its opposition period and covers class 9 (Computers and Scientific Devices).

View Semiconductor Energy Laboratory Co., Ltd. portfolioGet this data via the API
Official USPTO record
EXTET trademark as filed
As filed with the USPTO
Status
Opposition period
Since September 15, 2026
Filed
May 19, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99831836
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns EXTET

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

Owner

Semiconductor Energy Laboratory Co., Ltd.

Atsugi-shi Kanagawa, Japan

37 trademarks in the portfolioView company

Representative

Keith Ashley Barritt

Fish & Richardson P.C.

Goods and services

What the mark covers

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

  • measuring machines, apparatus, and accessories or parts thereof, namely, calculators; photographic machines, apparatus, and accessories thereof, namely, photographic projectors; digital cameras; digital video cameras; cinematographic machines and apparatus; telecommunication machines and apparatus, namely, telephone apparatus; GPS navigation devices; mobile phones; smartphones; televisions; portable computer terminals for displaying electronic publications; sound reproduction apparatus; computers and computer peripherals; notebook computers; laptop computers; tablet computers; personal computers; microcomputers; computer monitors; touch panels for computers; displays using organic electroluminescence (EL) elements, namely, electric luminescent display panels; touch panels for personal digital assistants; semiconductor power elements; electronic tags for goods; blank integrated circuit cards; electronic card readers for integrated circuit cards; magnetic coded card readers; electronic card writers for integrated circuit cards; magnetic coded card writers; radio transmitters and receivers; digital data memory devices, namely, memory boards; video telephones; telecommunication machines and apparatus for video telephone system, namely, touch panels; coin counting or sorting machines; photo-copying machines; electronic calculators; voting machines; flat panel display screens; organic light emitting diode (OLED) display panels; head-mounted video displays

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. New application office supplied data entered
  7. Application filing receipt mailed
  8. New application entered
FAQ

About EXTET

Who owns the trademark "EXTET"?

The USPTO trademark "EXTET" (application 99831836) is owned by Semiconductor Energy Laboratory Co., Ltd.

What is the status of "EXTET"?

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 EXTET 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_019e4909-bf69-73aa-a1f5-4c1dad3e90b2
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019e4909-bf69-73aa-a1f5-4c1dad3e90b2",
  "object": "trademark",
  "mark_text": "EXTET",
  "status": {
    "primary": "pending",
    "stage": "pending_opposition"
  },
  "office_code": "US",
  "application_number": "99831836",
  "filing_date": "2026-05-19",
  "nice_classes": [
    9
  ],
  "owners": [
    {
      "name": "Semiconductor Energy Laboratory Co., Ltd.",
      "entity_id": "ent_019ebaf2-d35e-7124-9266-b48b5d43bfa7"
    }
  ]
}