Granted Patent
Utility
US 5,752,826 · App. 08/648,735
Dental impression tray and handle assembly
Inventor:
Craig A. Andreiko
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: May 16, 1996
Inventor
Craig A. Andreiko
Assignee (at issue)
Ormco 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.