Granted Patent
Utility
US 4,953,388 · App. 07/301,088
Air gauge sensor
Inventor:
Andrew H. Barada
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jan 25, 1989
Inventor
Andrew H. Barada
Assignee (at issue)
PerkinElmer, 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.