Granted Patent
Utility
US 4,975,142 · App. 07/433,066
Fabrication method for printed circuit board
Inventors:
Joseph M. Iannacone, Lawrence J. Ibbetson
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Nov 7, 1989
Inventors
Joseph M. Iannacone
Lawrence J. Ibbetson
Assignee (at issue)
General Electric Company
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.