Granted Patent
Utility
US 5,632,793 · App. 08/554,068
Filter hose assembly employing a conical filter element
Inventor:
Clifford D. Haggard
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Nov 6, 1995
Inventor
Clifford D. Haggard
Assignee (at issue)
Purolator Products Company
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.