Granted Patent
Utility
US 4,313,208 · App. 06/082,850
Methods and apparatus for transmitting electromagnetic radiation for illumination and communication
Inventor:
Frank E. Kavenik
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Oct 9, 1979
Inventor
Frank E. Kavenik
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.