Granted Patent
Utility
US 4,714,464 · App. 06/923,277
Mechanism for coupling the aspirant line of an irrigation/aspiration machine to the pressure monitoring section
Inventor:
Walter A. Newton
Patented Case
View Patent ↗
Granted: Dec 22, 1987
Filed: Oct 27, 1986
Inventor
Walter A. Newton
Assignee (at issue)
Entravision, 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.