Granted Patent
Utility
US 5,735,692 · App. 08/619,016
Laser welded investment cast dental restoration, method of making same and wax pattern making method therefor
Inventor:
Robert P. Berger
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Mar 20, 1996
Inventor
Robert P. Berger
Assignee (at issue)
Belle de St. Claire
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.