Granted Patent
Utility
US 4,458,495 · App. 06/349,615
Pressure modulation system for load matching and stroke limitation of Stirling cycle apparatus
Inventor:
William T. Beale
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Dec 16, 1981
Inventor
William T. Beale
Assignee (at issue)
SUNPOWER 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.