Granted Patent
Utility
US 4,622,007 · App. 06/642,141
Variable heat generating method and apparatus
Inventor:
Grigory M. Gitman
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Aug 17, 1984
Inventor
Grigory M. Gitman
Assignee (at issue)
American Combustion, Inc.
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.