Granted Patent
Utility
US 5,259,027 · App. 07/772,509
Dial restoral method for digital circuits
Inventors:
Stephen J. Winter, Francis E. Roumillat, IV
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Oct 7, 1991
Inventors
Stephen J. Winter
Francis E. Roumillat, IV
Assignee (at issue)
Racal-Datacom 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.