Granted Patent
Utility
US 6,653,365 · App. 10/136,031
Dental composite materials and method of manufacture thereof
Inventor:
Weitao Jia
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Apr 30, 2002
Inventor
Weitao Jia
Assignee (at issue)
Pentron Clinical Technologies, 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.