Granted Patent
Utility
US 4,477,502 · App. 06/490,117
Plastic sheet having high gloss and low coefficient of friction and method for producing the same
Inventor:
Eileen F. O'Sullivan
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Apr 29, 1983
Inventor
Eileen F. O'Sullivan
Assignee (at issue)
American 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.