Granted Patent
Utility
US 4,694,137 · App. 06/821,674
Laser welding head for sleeve-to-tube welding
Inventors:
Phillip J. Hawkins, William H. Kasner, Richard A. Miller
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Jan 23, 1986
Inventors
Phillip J. Hawkins
William H. Kasner
Richard A. Miller
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.