Granted Patent
Utility
US 4,553,729 · App. 06/568,937
Multi-panelled concrete forming structure for forming flat curved walls
Inventor:
Frank T. Connors
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Jan 10, 1984
Inventor
Frank T. Connors
Assignee (at issue)
Symons Corporation
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.