Granted Patent
Utility
US 4,777,085 · App. 06/687,202
Multiple layer sheet material
Inventors:
Lee Murray, Suzanne E. Schaefer
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Dec 28, 1984
Inventors
Lee Murray
Suzanne E. Schaefer
Assignee (at issue)
American National Can Company
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.