Granted Patent
Utility
US 4,762,880 · App. 07/046,598
Water-based thermoforming adhesives
Inventor:
Pak T. Leung
Patented Case
View Patent ↗
Granted: Aug 9, 1988
Filed: May 5, 1987
Inventor
Pak T. Leung
Assignee (at issue)
Uniroyal Plastics Company, Inc.
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.