Granted Patent
Utility
US 5,213,150 · App. 07/681,312
Core knock-out fixture
Inventor:
Jakob H. Sensenstein
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Apr 8, 1991
Inventor
Jakob H. Sensenstein
Assignee (at issue)
Doehler-Jarvis Limited Partnership
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.