Granted Patent
Utility
US 5,371,973 · App. 07/953,799
Grinding machine utilizing multiple, parallel, abrasive belts simultaneously grinding surfaces on a workpiece
Inventors:
Russell E. Kaiser, Jr., Ricky L. Mowen, Timothy W. Hykes, Dennis A. Fortney, Dennis F. Rice
Patented Case
View Patent ↗
Granted: Dec 13, 1994
Filed: Sep 30, 1992
Inventors
Russell E. Kaiser, Jr.
Ricky L. Mowen
Timothy W. Hykes
Dennis A. Fortney
Dennis F. Rice
Assignee (at issue)
Western Atlas, 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.