Granted Patent
Utility
US 6,003,658 · App. 08/456,251
Telescoping rigid frame and scissor conveyor with suspension
Inventors:
John W. Best, Bob K. Flippo, James D. Walker, Gary D. Carter
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: May 31, 1995
Inventors
John W. Best
Bob K. Flippo
James D. Walker
Gary D. Carter
Assignee (at issue)
Northstar Industries, 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.