Granted Patent
Utility
US 4,926,464 · App. 07/318,730
Telephone communication apparatus and method having automatic selection of receiving mode
Inventor:
James T. Schley-May
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Mar 3, 1989
Inventor
James T. Schley-May
Assignee (at issue)
TELXON 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.