Granted Patent
Utility
US 4,758,173 · App. 06/850,755
Socket adaptor for fluorescent lamp
Inventor:
Donald P. Northrop
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Apr 11, 1986
Inventor
Donald P. Northrop
Assignee (at issue)
Duro-Test 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.