Granted Patent
Utility
US 6,571,936 · App. 10/135,653
Chain and flight conveyor
Inventors:
James J. Melhuish, Gregory M. Chandler
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Apr 30, 2002
Inventors
James J. Melhuish
Gregory M. Chandler
Assignee (at issue)
Joy MM Delaware, 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.