Granted Patent
Utility
US 5,973,842 · App. 09/027,571
Method and apparatus for an optical illuminator assembly and its alignment
Inventor:
Peter E. Spangenberg
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Feb 23, 1998
Inventor
Peter E. Spangenberg
Assignee (at issue)
Bayer Aktiengesellschaft
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.