LEFFINGWELL CHEMICAL COMPANY Trademarks
RYNO-TOX
Filed: August 14, 1967
INSECTICIDE COMPRISING RYANIA ALKALOID
Owned by: LEFFINGWELL CHEMICAL COMPANY
Serial Number: 72278223
THRIP-TOX
Filed: March 20, 1968
AGRICULTURAL INSECTICIDE
Owned by: LEFFINGWELL CHEMICAL COMPANY
Serial Number: 72293728
LEFKO
Filed: June 5, 1968
CURING AGENTS FOR SYNTHETIC THERMOSETTING RESIN ADHESIVES
Owned by: LEFFINGWELL CHEMICAL COMPANY
Serial Number: 72299778
