Granted Patent
Utility
US 4,649,283 · App. 06/767,438
Multi-phase linear alternator driven by free-piston Stirling engine
Inventors:
David M. Berchowitz, Robert W. Redlich
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Aug 20, 1985
Inventors
David M. Berchowitz
Robert W. Redlich
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.