Granted Patent
Utility
US 5,519,691 · App. 08/253,464
Arrangement for and method of providing radio frequency access to a switching system
Inventors:
Thomas E. Darcie, Mary R. Phillips, Nemmara K. Shankaranarayanan
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Jun 3, 1994
Inventors
Thomas E. Darcie
Mary R. Phillips
Nemmara K. Shankaranarayanan
Assignee (at issue)
AT&T CORP.
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.