Granted Patent
Utility
US 4,828,928 · App. 06/943,514
Monoaxial shrink film
Inventor:
Gautam P. Shah
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Dec 17, 1986
Inventor
Gautam P. Shah
Assignee (at issue)
W. R. Grace & Co.
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.