Granted Patent
Utility
US 6,066,255 · App. 09/299,346
Belt type filtration apparatus for industrial liquids having multiple sized debris
Inventor:
Raymond L. Anderson
Patented Case
View Patent ↗
Granted: May 23, 2000
Filed: Apr 26, 1999
Inventor
Raymond L. Anderson
Assignee (at issue)
H.R. Black Co., Inc.
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.