Granted Patent
Utility
US 4,459,458 · App. 06/413,120
Machine tool with laser heat treating
Inventors:
Rudolf A. Vetsch, Gerald J. Romito
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Aug 30, 1982
Inventors
Rudolf A. Vetsch
Gerald J. Romito
Assignee (at issue)
Warner & Swasey
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.