Granted Patent
Utility
US 6,334,775 · App. 09/250,690
Continuous fiber-reinforced dental restorations
Inventors:
Huakun Xu, Frederick C. Eichmiller, Gary E. Schumacher
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Feb 16, 1999
Inventors
Huakun Xu
Frederick C. Eichmiller
Gary E. Schumacher
Assignee (at issue)
American Dental Association Health Foundation
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.