Granted Patent
Utility
US 4,023,903 · App. 05/603,492
Light composer for providing even field illumination and diffuse light
Inventor:
Harold A. Scheib
Patented Case
View Patent ↗
Granted: May 17, 1977
Filed: Aug 11, 1975
Inventor
Harold A. Scheib
Assignee (at issue)
Bell and Howell, LLC
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.