Trademark attorney

Douglas N. Deeth

Douglas N. Deeth of Blake, Cassels & Graydon is listed as the attorney or agent of record on 19 trademark filings, as reported by the trademark offices.

Browse filings Get this data via the API

Data current as of May 1, 2026

Filings of record: 19
Still active: 0
Registration rate: 53%
Latest filingFirst in 1978: 1993

Coverage

Where these filings were made

Each mark counts once here: an international registration is grouped with its country designations, not counted once per country.

By office

USPTO19100%

By classA mark can cover several classes

Class 1Chemicals421%
Class 25Clothing421%
Class 28Toys and Sporting Goods316%
Class 42Computer and Scientific Services316%
Class 6Common Metals211%
Class 16Paper Goods and Printed Matter211%
Class 35Advertising and Business211%
Class 4Lubricants and Fuels15%

+5 more

Activity

Filings per year

New filings of record each year, counting each mark once.

Peak year · 4 filed: 1987
1989 to 1993 · filed: 4
First filing: 1978

Clients

Companies on these filings

Owners on the latest 19 filings of record that Signa links to a company record.

14 more owners in these filings are not linked to a company record.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings

Mark	Status	Office	Owner	Classes	Filed
HOVER PUCK	abandoned	USPTO	Thinkway Trading Corporation	28	1993-03-30
SUPRFLUX 100	abandoned	USPTO	Annatech Industries Inc.	1	1990-08-17
INFOMART ONLINE	cancelled	USPTO	Infomart	16, 42	1990-01-31
SWASH	abandoned	USPTO	Swash International Inc.	28	1989-11-07
LITTLE BAGGER	cancelled	USPTO	Lichtenberger, John R.	18	1988-07-25
LOUD-TIES TI-WON-ON	abandoned	USPTO	Catfish Calhoun Inc.	25	1988-03-16
OPPORTUNITY	abandoned	USPTO	Soward, Clifford	28	1987-09-18
BBC	abandoned	USPTO	Catfish Calhoun Inc.	25	1987-06-25

API

Get this data via the API

Every number on this page comes from the Signa API. Pull the same records into your own product with one request.

GET/v1/attorneys/{id}
Attorney record, firm and filing stats
GET/v1/attorneys/{id}/analytics
Filings by office, class and year
GET/v1/attorneys/{id}/trademarks
Every trademark the attorney is of record on

Get API key View docs

GET /v1/attorneys/{id}

ID=att_019d15cf-7972-7432-9b2c-427ce3d367b0
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d15cf-7972-7432-9b2c-427ce3d367b0",
  "object": "attorney",
  "name": "Douglas N. Deeth",
  "firm_name": "BLAKE, CASSELS & GRAYDON",
  "country_code": null,
  "trademark_count": 19
}