Granted Patent
Utility
US 6,832,031 · App. 09/947,088
Optical modifier and method for the manufacture thereof
Inventor:
Ingo Smaglinski
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Sep 4, 2001
Inventor
Ingo Smaglinski
Assignee (at issue)
Cube Optics AG
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.