Granted Patent
Utility
US 6,286,413 · App. 09/361,102
Diaphragm actuator
Inventor:
Keith Hochhalter
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Jul 26, 1999
Inventor
Keith Hochhalter
Assignee (at issue)
Tolomatic, 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.