Granted Patent
Utility
US 4,848,635 · App. 06/518,541
Process and device for driving and synchronizing rolls
Inventors:
Wilhelm F. Lauener, Rolf Wurgler
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Jul 29, 1983
Inventors
Wilhelm F. Lauener
Rolf Wurgler
Assignee (at issue)
Louener Engineering AG
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.