Granted Patent
Utility
US 4,504,342 · App. 06/502,777
Belt construction and method of making same
Inventors:
Richard L. Marsh, Robert E. Wetzel
Patented Case
View Patent ↗
Granted: Mar 12, 1985
Filed: Jun 9, 1983
Inventors
Richard L. Marsh
Robert E. Wetzel
Assignee (at issue)
DayCo Holdings, LP
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.