Granted Patent
Utility
US 5,381,950 · App. 08/139,345
Zone sensor or thermostat with forced air
Inventor:
Richard L. Aldridge
Patented Case
View Patent ↗
Granted: Jan 17, 1995
Filed: Oct 20, 1993
Inventor
Richard L. Aldridge
Assignee (at issue)
American Standard 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.