Granted Patent
Utility
US 6,070,736 · App. 09/189,013
Sealing mechanism and method for screening machines
Inventors:
Brady P. Ballman, William W. Heyob
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Nov 9, 1998
Inventors
Brady P. Ballman
William W. Heyob
Assignee (at issue)
ROTEX, 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.