Granted Patent
Utility
US 4,337,695 · App. 06/228,800
Filter press with pivoting diverter doors
Inventor:
W. Richard Clendaniel
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Jan 26, 1981
Inventor
W. Richard Clendaniel
Assignee (at issue)
Ingersoll-Rand 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.