Granted Patent
Utility
US 4,285,733 · App. 06/123,741
Corrosion inhibiting concrete composition
Inventors:
Arnold M. Rosenberg, James M. Caidis
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Feb 22, 1980
Inventors
Arnold M. Rosenberg
James M. Caidis
Assignee (at issue)
W. R. Grace & Co.
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.