3 trademarks were found for owners matching the name Frederick C. Knowles.
#Classstatus
1 S:87189133
M:WHAT'S YOUR SITCOM
O:Frederick C. Knowles
41 Dead
2 S:86808897
M:OPPORTUNITY FILTER
O:Frederick C. Knowles
41 Registered
3 S:86689937
M:ETC

O:Frederick C. Knowles
41 Registered
Trademark Alertz updated from USPTO on 2030-01-24