Granted Patent
Utility
US 5,528,939 · App. 08/407,840
Micromechanical pressure gauge having extended sensor range
Inventors:
Jacob H. Martin, William P. Kelley
Patented Case
View Patent ↗
Granted: Jun 25, 1996
Filed: Mar 21, 1995
Inventors
Jacob H. Martin
William P. Kelley
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.