Granted Patent
Utility
US 4,915,983 · App. 06/742,747
Multilayer circuit board fabrication process
Inventors:
Harold Lake, Paul E. Grandmont
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Jun 10, 1985
Inventors
Harold Lake
Paul E. Grandmont
Assignee (at issue)
Fox Boro 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.