Granted Patent
Utility
US 4,726,562 · App. 06/889,060
Apparatus for casting an anchor in a concrete unit
Inventors:
Peter D. Courtois, Roy L. Edgar, Arthur G. Mess, Jr.
Patented Case
View Patent ↗
Granted: Feb 23, 1988
Filed: Jul 22, 1986
Inventors
Peter D. Courtois
Roy L. Edgar
Arthur G. Mess, Jr.
Assignee (at issue)
DAYTON SUPERIOR 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.