Granted Patent
Utility
US 5,491,941 · App. 08/314,076
Slippage controlled threaded rebar joint in reinforced concrete
Inventor:
Harry B. Lancelot, III
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Sep 28, 1994
Inventor
Harry B. Lancelot, III
Assignee (at issue)
Richmond Screw Anchor Company
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.