USPTO trademark

HALCYON

RegisteredUSPTOWord markClass 42

"HALCYON" is a word mark owned by Halcyon Carbon, Inc., filed at the USPTO on March 13, 2024. It is registered and covers class 42 (Computer and Scientific Services).

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Official USPTO record
HALCYON trademark as filed
As filed with the USPTO
Status
Registered
Since April 28, 2026
Filed
March 13, 2024
Registered
April 28, 2026
Expires
Not recorded
Application no.
98447124
Registration no.
8233479
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns HALCYON

The owner and representative on file with the office.

Owner

Halcyon Carbon, Inc.

San Francisco, United States

Representative

Connie L. Ellerbach, Esq.

Fenwick & West LLP

Goods and services

What the mark covers

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

  • Software as a service (SaaS) services featuring software using artificial intelligence for conducing searches via a search engine in the fields of energy, transport, climate, global economy, and regulatory compliance; software as a service (SaaS) services featuring software using artificial intelligence for retrieving, analyzing, filtering, and aggregating documents, reports, regulatory filings, and government policies in the fields of energy, transport, climate, global economy, and regulatory compliance; software as a service (SaaS) services featuring software using artificial intelligence to locate, extract, analyze, translate, and summarize documents, reports, regulatory filings, and government policies and generate summaries and recommendations regarding the same in the fields of energy, transport, climate, global economy, and regulatory compliance; application service provider featuring application programming interface (API) software for conducting searches via a search engine in the fields of energy, transport, climate, global economy, and regulatory compliance; application service provider featuring application programming interface (API) software for retrieving, analyzing, filtering, and aggregating documents, reports, regulatory filings, and government policies in the fields of energy, transport, climate, global economy, and regulatory compliance; application service provider featuring application programming interface (API) software to locate, extract, analyze, translate, and summarize documents, reports, regulatory filings, and government policies and generate summaries and recommendations regarding the same in the fields of energy, transport, climate, global economy, and regulatory compliance; providing customized computer searching services in the fields of energy, transport, climate, global economy, and regulatory compliance; providing a website featuring a search engine for others to conduct research in the fields of energy, transport, climate, global economy, and regulatory compliance

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Notice of registration confirmation emailed
  2. Registered-principal register
  3. Notice of acceptance of statement of use e-mailed
  4. Allowed principal register - sou accepted
  5. Statement of use processing complete
  6. Use amendment filed
  7. Teas statement of use received
  8. Noa e-mailed - sou required from applicant
  9. Extension of time to oppose process - terminated
  10. Extension of time to oppose received

10 earlier steps on the official record.

FAQ

About HALCYON

Who owns the trademark "HALCYON"?

The USPTO trademark "HALCYON" (application 98447124) is owned by Halcyon Carbon, Inc.

What is the status of "HALCYON"?

Its status at the USPTO is: registered.

When was "HALCYON" registered?

It was registered on April 28, 2026.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull HALCYON 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_019d2cb0-565b-71f1-9afc-391e986a5395
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2cb0-565b-71f1-9afc-391e986a5395",
  "object": "trademark",
  "mark_text": "HALCYON",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "98447124",
  "filing_date": "2024-03-13",
  "nice_classes": [
    42
  ],
  "owners": [
    {
      "name": "Halcyon Carbon, Inc.",
      "entity_id": null
    }
  ]
}