Granted Patent
Utility
US 5,248,952 · App. 07/820,708
Transformer core and method for finishing
Inventor:
Phillip I. Bisbee
Patented Case
View Patent ↗
Granted: Sep 28, 1993
Filed: Jan 14, 1992
Inventor
Phillip I. Bisbee
Assignee (at issue)
Kuhlman 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.