Granted Patent
Utility
US 5,600,132 · App. 08/325,500
Bi-directional laser light detection device having a laser light pipe
Inventors:
Glen D. Martinson, Marcus Beaumont
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Oct 19, 1994
Inventors
Glen D. Martinson
Marcus Beaumont
Assignee (at issue)
Beltronics 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.