Granted Patent
Utility
US 4,966,265 · App. 07/399,866
Clutch
Inventors:
Helmut Wiese, Paul-Erich Schonenbrucher
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Aug 29, 1989
Inventors
Helmut Wiese
Paul-Erich Schonenbrucher
Assignee (at issue)
Viscodrive GmbH
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.