Granted Patent
Utility
US 4,601,027 · App. 06/622,940
Optical FDM system
Inventors:
Robert W. A. Scarr, John A. C. Bingham
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Jun 21, 1984
Inventors
Robert W. A. Scarr
John A. C. Bingham
Assignee (at issue)
International Standard Electric Corporation
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.