Granted Patent
Utility
US 6,381,989 · App. 09/642,727
Heat treated fibers for reinforced dental restorations and method of manufacture thereof
Inventors:
Ajit Karmaker, Arun Prasad
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Aug 21, 2000
Inventors
Ajit Karmaker
Arun Prasad
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.