Granted Patent
Utility
US 6,099,729 · App. 08/792,036
Coreless non-metallic filter element
Inventors:
Albert F. Cella, Donald J. Gembolis, Bruce E. Shane
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Jan 31, 1997
Inventors
Albert F. Cella
Donald J. Gembolis
Bruce E. Shane
Assignee (at issue)
Parker-Hannifin Corporation
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.