Trademark Search / SIGMA

SIGMA

○ Dead · Cancelled

U.S. federal trademark · Serial No. 74221684 · Reg. No. TMA410133

Mark

SIGMA

Status

Cancelled

Serial Number

74221684

Registration No.

TMA410133

Filing Date

October 9, 1991

Registration Date

March 26, 1993

Class(es)

Class 009

Owners

UNITRON HEARING LTD.

03 · KITCHENER, ONTARIO, CA

Unitron Industries Ltd.

03 · Kitchener, Ontario, CA

Unitron Industries Ltd.

03 · Kitchener, Ontario, CA

Unitron Industries Ltd.

03 · Kitchener, Ontario, CA

Goods & Services

instruments; namely, a hand-held programmer for setting the parameters of hearing aids, and a kit consisting of computer programs, cables, and an interface operable with a microcomputer for setting the parameters of hearing aids

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Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.