Granted Patent
Utility
US 6,478,142 · App. 09/725,583
Contact assembly for accumulation conveyors
Inventors:
David Cotter, Ronald C. Ehlert, Thomas Pelak, Kenneth J. Kooistra, Curtis E. LeMay
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Nov 29, 2000
Inventors
David Cotter
Ronald C. Ehlert
Thomas Pelak
Kenneth J. Kooistra
Curtis E. LeMay
Assignee (at issue)
Rapistan Systems Advertising Corp.
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.