Granted Patent
Utility
US 4,621,592 · App. 06/676,012
Boiler having improved heat absorption
Inventor:
Michael J. McInerney
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Nov 29, 1984
Inventor
Michael J. McInerney
Assignee (at issue)
VAPOR CORP.
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.