Granted Patent
Utility
US 4,511,113 · App. 06/351,877
Hangar device for a recessed lighting unit
Inventors:
James B. Druffel, Joel S. Cohen
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Apr 8, 1982
Inventors
James B. Druffel
Joel S. Cohen
Assignee (at issue)
Prescolite, a division of U.S. Industries
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.