Granted Patent
Utility
US 5,426,427 · App. 07/680,440
Data transmission routing system
Inventors:
Douglas P. Chinnock, James Boardman, John R. Goltz
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Apr 4, 1991
Inventors
Douglas P. Chinnock
James Boardman
John R. Goltz
Assignee (at issue)
CompuServe Incorporated
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.