Granted Patent
Utility
US 5,173,237 · App. 07/469,164
Method of making a metallic core assembly
Inventor:
Thomas F. Kidd
Patented Case
View Patent ↗
Granted: Dec 22, 1992
Filed: Jan 24, 1990
Inventor
Thomas F. Kidd
Assignee (at issue)
Electrovert Ltd.
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.