Granted Patent
Utility
US 4,421,066 · App. 06/348,934
High efficiency boiler
Inventor:
Manochehr Gordbegli
Patented Case
View Patent ↗
Granted: Dec 20, 1983
Filed: Feb 16, 1982
Inventor
Manochehr Gordbegli
Assignee (at issue)
Teledyne Industries, 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.