Granted Patent
Utility
US 5,938,004 · App. 08/799,232
Method of providing temporary support for an extended conveyor belt
Inventors:
Margaret A. Roberts, David C. Tonkin
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Feb 14, 1997
Inventors
Margaret A. Roberts
David C. Tonkin
Assignee (at issue)
Consol, 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.