SIGMA

○ Dead · Expired

U.S. federal trademark · Serial No. 71590106 · Reg. No. 0536253

Mark

SIGMA

Status

Expired

Serial Number

71590106

Registration No.

0536253

Filing Date

December 29, 1949

Registration Date

January 9, 1951

Class(es)

Class 009

Owner

03 · BOSTON, MA, US

ELECTRICAL RELAYS [ AND ACOUSTIC SWITCHES]

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