Granted Patent
Utility
US 6,412,621 · App. 09/422,557
Conveyors system with volume sharing
Inventors:
Ronald J. De Vree, Harry Edwards
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Oct 21, 1999
Inventors
Ronald J. De Vree
Harry Edwards
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.