Granted Patent
Utility
US 6,112,638 · App. 09/303,065
Electropneumatic positioner having binary input arrangement providing access to electrical output functions thereof
Inventor:
Michael Loechner
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Apr 30, 1999
Inventor
Michael Loechner
Assignee (at issue)
Fox Boro Company
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.