Granted Patent
Utility
US 4,613,913 · App. 06/648,002
Data encoding and decoding scheme
Inventor:
Alan C. Phillips
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Sep 5, 1984
Inventor
Alan C. Phillips
Assignee (at issue)
Etak, Inc.
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.