Granted Patent
Utility
US 4,458,537 · App. 06/262,545
High accuracy differential pressure capacitive transducer
Inventors:
Robert L. Bell, Richard A. Lathlaen
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: May 11, 1981
Inventors
Robert L. Bell
Richard A. Lathlaen
Assignee (at issue)
Combustion Engineering, 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.