Granted Patent
Utility
US 6,417,246 · App. 09/660,111
Dental composite materials
Inventors:
Weitao Jia, Shuhua Jin
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Sep 12, 2000
Inventors
Weitao Jia
Shuhua Jin
Assignee (at issue)
Jeneric/Pentron Incorporated
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.