Granted Patent
Utility
US 5,238,454 · App. 07/713,425
One-piece flexible coupling having a plurality of axially spaced disks
Inventor:
Horst Schmidt
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Jun 10, 1991
Inventor
Horst Schmidt
Assignee (at issue)
Build A Mold Limited
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.