Trademark Search  /  DUO SEAL

DUO SEAL

○ Dead · Expired

U.S. federal trademark · Serial No. 71550105 · Reg. No. 0537570

Mark
DUO SEAL
Status
Expired
Serial Number
71550105
Registration No.
0537570
Filing Date
February 18, 1948
Registration Date
February 13, 1951
Class(es)
Class 007

Owners

WELCH VACUUM TECHNOLOGY, INC.
03 · SKOKIE, IL, US
W. M. WELCH MANUFACTURING COMPANY
03 · CHICAGO, IL, US

Goods & Services

VACUUM PUMPS, PARTICULARLY PUMPS FOR THE CREATION OF HIGH VACUUM CONDITIONS IN LABORATORY EXPERIMENTAL AND TESTING OPERATIONS, ALSO FOR THE EVACUATION OF VARIOUS ELECTRONIC DEVICES AND LARGER SYSTEMS, FOR DIFFUSING AND VAPOR REMOVING OPERATIONS IN CHEMICAL PROCESSING AND FOR INDUSTRIAL EVACUATION IN GENERAL

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