Granted Patent
Utility
US 4,789,770 · App. 07/073,610
Controlled depth laser drilling system
Inventors:
William H. Kasner, James F. Roach, Vincent A. Toth
Patented Case
View Patent ↗
Granted: Dec 6, 1988
Filed: Jul 15, 1987
Inventors
William H. Kasner
James F. Roach
Vincent A. Toth
Assignee (at issue)
Westinghouse Electric Company 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.