Granted Patent
Utility
US 4,853,144 · App. 07/286,017
Moisturized compositions of hydrate-forming phosphates and methods for preparation thereof
Inventor:
Louis A. Highfill
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Dec 19, 1988
Inventor
Louis A. Highfill
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.