Granted Patent
Utility
US 4,860,123 · App. 07/213,586
Electronic store
Inventors:
Karl W. McCalley, John Russell Bertram, Walter W. Sloan, Rory T. McClure
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Jun 30, 1988
Inventors
Karl W. McCalley
John Russell Bertram
Walter W. Sloan
Rory T. McClure
Assignee (at issue)
Telaction 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.