Granted Patent
Utility
US 4,913,082 · App. 07/227,943
Process for surface modification of polymer articles
Inventors:
Joseph Silbermann, Michael T. Burchill
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Aug 3, 1988
Inventors
Joseph Silbermann
Michael T. Burchill
Assignee (at issue)
M&T Chemicals, 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.