Granted Patent
Utility
US 4,589,956 · App. 06/606,006
Condensation heating facility control system
Inventor:
George R. Westby
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: May 2, 1984
Inventor
George R. Westby
Assignee (at issue)
GTE Communication Systems Corporation
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.