Granted Patent
Utility
US 5,922,124 · App. 08/928,730
Additive for, method of adding thereof and resulting cured cement-type concreations for improved heat and freeze-thaw durability
Inventor:
William W. Supplee
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Sep 12, 1997
Inventor
William W. Supplee
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.