Granted Patent
Utility
US 4,975,419 · App. 07/243,085
Tissue irrigating solution
Inventors:
Walter A. Newton, Douglas V. Carter
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Sep 9, 1988
Inventors
Walter A. Newton
Douglas V. Carter
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.