Polyphase Duplex Trademark Details

Polyphase Duplex was registered on Tuesday, October 28, 1924 and is currently owned by Keuffel & Esser Company under the registration number 190958 . This mark is dead with a status of Expired. The last case file activity for this mark occured 38 years ago on Friday, January 10, 1986, according to the United State Patent & Trademark Office
Word Mark Polyphase Duplex
Status Dead Registered 900 — Expired
Keuffel & Esser Company
Hoboken, New Jersey.
,
Serial Number 71197820
Registration Number 190958
Status Date Friday, January 10, 1986
Filing Date Friday, January 10, 1986
Registration Date Tuesday, October 28, 1924

Case File Statements

Goods & Services (Calculating) Slide Rules

Classifications

International Class Codes
009 — Class 9 consists mostly of instruments used for controlling vehicles (such as ships), scientific research, and all computer programs and software regardless of the recording media such as CD-ROMs, hard drives, downloads, etc.
U.S. Class Codes 026
Status 9 — Expired
Status Date Tuesday, March 1, 1983
First Use Anywhere Friday, June 9, 1911
First Use In Commerce Friday, June 9, 1911
Primary Code 026

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