Granted Patent
Utility
US 5,787,928 · App. 08/429,020
Valve structure
Inventors:
Harold Allen, Edward T. Feldman, Varce E. Howe, Ghaffar Kazkaz, Jerry McPherson, James A. Scharfenberger
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: May 3, 1995
Inventors
Harold Allen
Edward T. Feldman
Varce E. Howe
Ghaffar Kazkaz
Jerry McPherson
James A. Scharfenberger
Assignee (at issue)
Ransburg 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.