Granted Patent
Utility
US 4,924,368 · App. 07/295,043
Fluorescent lamp with protective shield
Inventors:
Donald P. Northrop, David P. Strauss
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Jan 6, 1989
Inventors
Donald P. Northrop
David P. Strauss
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.