Granted Patent
Utility
US 4,940,413 · App. 07/385,615
Electrical make/break interconnect having high trace density
Inventors:
Winthrop D. Childers, William John Sperry, Jr.
Patented Case
View Patent ↗
Granted: Jul 10, 1990
Filed: Jul 26, 1989
Inventors
Winthrop D. Childers
William John Sperry, Jr.
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.