Granted Patent
Utility
US 5,360,770 · App. 07/817,885
Fluoride ion-leachable glasses and dental cement compositions containing them
Inventor:
Thomas C. Chadwick
Patented Case
View Patent ↗
Granted: Nov 1, 1994
Filed: Jan 7, 1992
Inventor
Thomas C. Chadwick
Assignee (at issue)
Den-Mat Holdings, LLC
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.