Granted Patent
Utility
US 4,912,938 · App. 07/387,190
DC voltage bleeder for a variable speed air conditioner
Inventors:
Louis Sulfstede, C. Lee Stamp, Jr.
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Jul 28, 1989
Inventors
Louis Sulfstede
C. Lee Stamp, Jr.
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.