Granted Patent
Utility
US 5,458,032 · App. 08/149,460
Method for making a cold forged battery bushing
Inventor:
Bernard N. Spiegelberg
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Nov 9, 1993
Inventor
Bernard N. Spiegelberg
Assignee (at issue)
Tulips Corporation
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.