Granted Patent
Utility
US 4,813,833 · App. 06/529,370
Threaded fastener having jacketed head
Inventor:
Alvin D. Haab
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Sep 6, 1983
Inventor
Alvin D. Haab
Assignee (at issue)
Brock Manufacturing, 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.