3 trademarks were found for owners matching the name W. M. WELCH MANUFACTURING COMPANY.
#Classstatus
1 S:71573390
M:DENSICHRON

O:W. M. WELCH MANUFACTURING COMPANY
26 Dead
2 S:71573391
M:MAGNEPHOT
O:W.M. WELCH MANUFACTURING COMPANY
26 Dead
3 S:71550105
M:DUO SEAL

O:W. M. WELCH MANUFACTURING COMPANY, WELCH VACUUM TECHNOLOGY, INC.
23 Dead
Trademark Alertz updated from USPTO on 2030-01-24