Granted Patent
Utility
US 4,577,816 · App. 06/525,574
Vacuum-packed survival equipment
Inventor:
Gordon T. Foster
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Aug 22, 1983
Inventor
Gordon T. Foster
Assignee (at issue)
Gulf Eastern Manufacturing 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.