Granted Patent
Utility
US 4,865,791 · App. 07/152,999
Method of forming a surface protector with an expansible pocket
Inventors:
Salvatore Ferro, Robert A. Isaksen, Robert J. Stupi
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Feb 3, 1988
Inventors
Salvatore Ferro
Robert A. Isaksen
Robert J. Stupi
Assignee (at issue)
The Excello Specialty 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.