Granted Patent
Utility
US 5,855,794 · App. 08/863,040
High volume self-cleaning filter and method of cleaning same
Inventor:
Louis D. Caracciolo, Jr.
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: May 23, 1997
Inventor
Louis D. Caracciolo, Jr.
Assignee (at issue)
The BOC Group 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.