Granted Patent
Utility
US 4,757,501 · App. 06/944,102
Method for zero byte time slot interchange
Inventor:
Steve GORSHE
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Dec 22, 1986
Inventor
Steve GORSHE
Assignee (at issue)
GTE Communication Systems 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.