Granted Patent
Utility
US 4,646,204 · App. 06/827,705
Hole geometry for printed circuit boards
Inventor:
Eric A. Brauer
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Feb 10, 1986
Inventor
Eric A. Brauer
Assignee (at issue)
RCA 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.