Granted Patent
Utility
US 5,908,879 · App. 08/900,838
Coated metal fluoride particles and a dental composition containing coated metal fluoride particles
Inventors:
Mitsunobu Kawashima, Kenichi Hino
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Jul 25, 1997
Inventors
Mitsunobu Kawashima
Kenichi Hino
Assignee (at issue)
KURARAY CO., LTD.
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.