Granted Patent
Utility
US 4,259,847 · App. 05/934,156
Stepped capacity constant volume building air conditioning system
Inventor:
Richard H. Pearse, Jr.
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Aug 16, 1978
Inventor
Richard H. Pearse, Jr.
Assignee (at issue)
The Trane 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.