Granted Patent
Utility
US 4,842,581 · App. 07/095,077
Medical lavage apparatus
Inventor:
Richard C. Davis
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Sep 11, 1987
Inventor
Richard C. Davis
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.