Granted Patent
Utility
US 4,199,784 · App. 05/803,143
Method and apparatus for electro-optically recording pictorial information for a facsimile transmission system
Inventors:
Klaus Wellendorf, Ruediger Sommer
Patented Case
View Patent ↗
Granted: Apr 22, 1980
Filed: Jun 3, 1977
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.