Granted Patent
Utility
US 5,422,758 · App. 08/118,037
Adjustable beam splitter
Inventor:
William E. Lawson
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Sep 8, 1993
Inventor
William E. Lawson
Assignee (at issue)
Laser Machining, 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.