Granted Patent
Utility
US 4,460,355 · App. 06/387,672
Fluid pressure monitoring system
Inventor:
Douglas C. Layman
Patented Case
View Patent ↗
Granted: Jul 17, 1984
Filed: Jun 11, 1982
Inventor
Douglas C. Layman
Assignee (at issue)
IVAC Corporation
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.