Granted Patent
Utility
US 4,647,137 · App. 06/716,017
Lamp base connector assembly
Inventor:
Malcolm E. Sorrell
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Mar 26, 1985
Inventor
Malcolm E. Sorrell
Assignee (at issue)
Voltarc Tubes, Inc.
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.