Granted Patent
Utility
US 5,583,294 · App. 08/294,090
Differential pressure transmitter having an integral flame arresting body and overrange diaphragm
Inventor:
Edwin L. Karas
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Aug 22, 1994
Inventor
Edwin L. Karas
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.