Granted Patent
Utility
US 4,615,219 · App. 06/765,058
Pressure gauge for use with a corrosive fluid medium
Inventor:
Lani G. Ache
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Aug 12, 1985
Inventor
Lani G. Ache
Assignee (at issue)
Ametek, Inc.
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.