Granted Patent
Utility
US 4,775,816 · App. 07/118,446
Piezoelectric sensor
Inventors:
Christopher J. White, Michael A. Virello, Edward Yelke, John R. Huff
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Nov 9, 1987
Inventors
Christopher J. White
Michael A. Virello
Edward Yelke
John R. Huff
Assignee (at issue)
Stanadyne LLC
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.