Granted Patent
Utility
US 4,175,161 · App. 05/901,014
Method of improving the adhesion of a heat activatable polyurethane adhesive to a vinyl substrate
Inventors:
Ozzie Fogle, James Cooley
Patented Case
View Patent ↗
Granted: Nov 20, 1979
Filed: Apr 27, 1978
Inventors
Ozzie Fogle
James Cooley
Assignee (at issue)
Champion International Corporation Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.