Granted Patent
Utility
US 4,277,900 · App. 06/137,122
Iron steam chamber construction
Inventor:
Harold W. Gowdy
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Apr 4, 1980
Inventor
Harold W. Gowdy
Assignee (at issue)
General Electric 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.