Granted Patent
Utility
US 5,507,003 · App. 08/338,885
Parallel interface protocol for bidirectional communications between computer and printer using status lines for transmitting data during a reverse channel operation
Inventor:
Jeff D. Pipkins
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Nov 14, 1994
Inventor
Jeff D. Pipkins
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.