AIR BLOCK

○ Dead · Cancelled

U.S. federal trademark · Serial No. 73192174 · Reg. No. 1135774

Mark

AIR BLOCK

Status

Cancelled

Serial Number

73192174

Registration No.

1135774

Filing Date

November 6, 1978

Registration Date

May 20, 1980

Class(es)

Class 020

Owner

03 · NORTHFIELD, MN, US

PLASTIC INFLATABLE VENTILATION CONTROL STOPPINGS FOR MINE SHAFTS

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