Granted Patent
Utility
US 5,442,436 · App. 08/188,102
Reflective collimator
Inventor:
William E. Lawson
Patented Case
View Patent ↗
Granted: Aug 15, 1995
Filed: Jan 27, 1994
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.