Granted Patent
Utility
US 4,203,136 · App. 05/953,766
Method and apparatus for electro-optically sensing, transmitting and recording pictorial information in particular facsimile transmission systems
Inventors:
Klaus Wellendorf, Ruediger Sommer
Patented Case
View Patent ↗
Granted: May 13, 1980
Filed: Oct 23, 1978
Inventors
Klaus Wellendorf
Ruediger Sommer
Assignee (at issue)
Dr. Ing. Rudolf Hell GmbH
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.