Granted Patent
Utility
US 5,439,021 · App. 08/114,955
Electro-pneumatic converter
Inventors:
Brian J. Burlage, Steven B. Pauller, Stanley R. Good, Barry L. Gaarder
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Aug 31, 1993
Inventors
Brian J. Burlage
Steven B. Pauller
Stanley R. Good
Barry L. Gaarder
Assignee (at issue)
Fisher Controls International 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.