Granted Patent
Utility
US 5,379,792 · App. 08/140,672
Damper with blade for sensing pressure differential
Inventor:
Robert M. Van Becelaere
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Oct 21, 1993
Inventor
Robert M. Van Becelaere
Assignee (at issue)
Tomkins Industries, 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.