Granted Patent
Utility
US 5,317,241 · App. 07/671,454
Rotary drive for a data carrier
Inventor:
Helmut Hans
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Mar 19, 1991
Inventor
Helmut Hans
Assignee (at issue)
Papst Licensing 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.