Granted Patent
Utility
US 4,981,583 · App. 07/363,668
High consistency pressure screen and method of separating accepts and rejects
Inventor:
Peter E. LeBlanc
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Jun 8, 1989
Inventor
Peter E. LeBlanc
Assignee (at issue)
Beloit 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.