Granted Patent
Utility
US 4,302,640 · App. 06/091,925
Flow detector
Inventors:
Reno L. Vicenzi, Paul R. Smargiassi
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: Nov 7, 1979
Inventors
Reno L. Vicenzi
Paul R. Smargiassi
Assignee (at issue)
Bourns Medical Systems, 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.