Granted Patent
Utility
US 4,589,287 · App. 06/651,283
Strain gauge for medical pressure measurements
Inventor:
Duane Dickens
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Sep 17, 1984
Inventor
Duane Dickens
Assignee (at issue)
American Hospital Supply Corp.
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.