Granted Patent
Utility
US 4,674,521 · App. 06/735,872
Rinsing apparatus and method
Inventor:
Bernard H. Paulfus
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: May 20, 1985
Inventor
Bernard H. Paulfus
Assignee (at issue)
Vaccine Technology Limited
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.