Granted Patent
Utility
US 6,305,081 · App. 09/187,359
Installing and servicing an HVAC system
Inventor:
Danny D. Beaver
Patented Case
View Patent ↗
Granted: Oct 23, 2001
Filed: Nov 6, 1998
Inventor
Danny D. Beaver
Assignee (at issue)
American Standard International 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.