Granted Patent
Utility
US 5,402,469 · App. 07/973,264
Carrier locating system
Inventors:
Andrew Hopper, Roy Want, Roger M. Needham, David J. Wheeler
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Nov 9, 1992
Inventors
Andrew Hopper
Roy Want
Roger M. Needham
David J. Wheeler
Assignee (at issue)
Olivetti Research Limited
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.