Granted Patent
Utility
US 5,664,091 · App. 08/524,021
Method and system for a voiding unnecessary retransmissions using a selective rejection data link protocol
Inventor:
Henry D. Keen
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: Aug 31, 1995
Inventor
Henry D. Keen
Assignee (at issue)
NCR 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.