Granted Patent
Utility
US 4,383,416 · App. 06/221,137
Absorption heating system with improved liquid flow control
Inventor:
Benjamin A. Phillips
Patented Case
View Patent ↗
Granted: May 17, 1983
Filed: Dec 29, 1980
Inventor
Benjamin A. Phillips
Assignee (at issue)
ALLIED CONSULTING, 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.