Granted Patent
Utility
US 4,874,364 · App. 07/171,569
Inspection instrument channel aspirator and pressure neutralizing device
Inventors:
David L. Morris, Mihail Filip, Frank D'Amelio, Dominick G. Esposito, Robert H. Quint
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Mar 22, 1988
Inventors
David L. Morris
Mihail Filip
Frank D'Amelio
Dominick G. Esposito
Robert H. Quint
Assignee (at issue)
Circon Corporation
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.