Granted Patent
Utility
US 5,814,786 · App. 08/554,372
System and method for laser butt-welding
Inventors:
Kenneth C. Johnson, Christopher A. Zurek
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Nov 8, 1995
Inventors
Kenneth C. Johnson
Christopher A. Zurek
Assignee (at issue)
Littell International, Inc.
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.