Granted Patent
Utility
US 6,144,483 · App. 09/346,743
Optical scanning with phase shifted beam
Inventors:
Roy D. Allen, Frank Scholten
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Jul 2, 1999
Inventors
Roy D. Allen
Frank Scholten
Assignee (at issue)
Agfa NV
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.