Granted Patent
Utility
US 5,212,920 · App. 07/671,550
Strongback attachment system for concrete panel tilt-up construction
Inventor:
Dennis W. Tye
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Mar 19, 1991
Inventor
Dennis W. Tye
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.