Granted Patent
Utility
US 5,234,585 · App. 07/811,473
Vacuum filtration device
Inventor:
Peter Zuk, Jr.
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Dec 19, 1991
Inventor
Peter Zuk, Jr.
Assignee (at issue)
Zuk, Incorporated
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.