Granted Patent
Utility
US 4,487,828 · App. 06/500,681
Method of manufacturing printed circuit boards
Inventors:
Raymond C. Hladovcak, Walter W. Keating
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Jun 3, 1983
Inventors
Raymond C. Hladovcak
Walter W. Keating
Assignee (at issue)
AT&T Technologies Incorporated
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.