Granted Patent
Utility
US 4,970,936 · App. 07/274,064
Gas reservoir actuation device
Inventors:
Russell E. Denker, Donald Williams
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Nov 21, 1988
Inventors
Russell E. Denker
Donald Williams
Assignee (at issue)
Hughes Aircraft 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.