Granted Patent
Utility
US 4,884,451 · App. 07/182,545
Fluid pressure measuring device with pressure attenuation
Inventor:
Dieter Schulze
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Apr 18, 1988
Inventor
Dieter Schulze
Assignee (at issue)
Parker Ermeto GmbH
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.