Granted Patent
Utility
US 4,612,751 · App. 06/753,159
Dapped end reinforcement assembly for precast prestressed concrete members
Inventors:
Edward C. Gloppen, Norman L. Scott
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Jul 9, 1985
Inventors
Edward C. Gloppen
Norman L. Scott
Assignee (at issue)
Dur-O-Wal, 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.