Granted Patent
Utility
US 4,954,249 · App. 07/206,151
Wave screen plate
Inventors:
William A. Gero, Frank Paskowski
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jun 10, 1988
Inventors
William A. Gero
Frank Paskowski
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.