Granted Patent
Utility
US 5,189,893 · App. 07/719,801
Shackle lock with a pivotable locking arrangement
Inventor:
Ludger Kortenbrede
Patented Case
View Patent ↗
Granted: Mar 2, 1993
Filed: Jun 24, 1991
Inventor
Ludger Kortenbrede
Assignee (at issue)
AUG WINKHAUS GMBH & CO. KG
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.