Granted Patent
Utility
US 4,397,155 · App. 06/276,983
Stirling cycle machines
Inventor:
Gordon Davey
Patented Case
View Patent ↗
Granted: Aug 9, 1983
Filed: Jun 24, 1981
Inventor
Gordon Davey
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION
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.