Granted Patent
Utility
US 4,577,824 · App. 06/629,209
Fastening device for fixing a body to a structural member
Inventors:
James B. Druffel, Joel S. Cohen
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Jul 9, 1984
Inventors
James B. Druffel
Joel S. Cohen
Assignee (at issue)
Prescolite, 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.