Granted Patent
Utility
US 5,255,526 · App. 07/852,307
Multi-mode air conditioning unit with energy storage system
Inventor:
Harry C. Fischer
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Mar 18, 1992
Inventor
Harry C. Fischer
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.