Granted Patent
Utility
US 5,922,785 · App. 08/909,427
Dental resins
Inventors:
Duncan E. Waller, Emil Jandourek
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Aug 11, 1997
Inventors
Duncan E. Waller
Emil Jandourek
Assignee (at issue)
Kerr Corporation
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.