Granted Patent
Utility
US 4,447,266 · App. 06/415,741
Cementitious composition
Inventor:
Solomon J. Nachfolger
Patented Case
View Patent ↗
Granted: May 8, 1984
Filed: Sep 7, 1982
Inventor
Solomon J. Nachfolger
Assignee (at issue)
Diamond Shamrock Chemicals Company
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.