Granted Patent
Utility
US 5,539,744 · App. 08/395,546
Hand-off management for cellular telephony
Inventors:
Helen Chu, Bharat Tarachand Doshi, Subrahmanyam Dravida, Sanjiv Nanda, Anil S. Sawkar, Kazem Anaraky Sohraby
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Feb 28, 1995
Inventors
Helen Chu
Bharat Tarachand Doshi
Subrahmanyam Dravida
Sanjiv Nanda
Anil S. Sawkar
Kazem Anaraky Sohraby
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.