Granted Patent
Utility
US 5,078,657 · App. 07/583,559
Belt tensioner
Inventors:
Walter Speil, Dieter Schmidt
Patented Case
View Patent ↗
Granted: Jan 7, 1992
Filed: Sep 17, 1990
Inventors
Walter Speil
Dieter Schmidt
Assignee (at issue)
Roussel Uclaf
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.