Granted Patent
Utility
US 5,631,949 · App. 08/445,486
Location independent time reporting message retrieval system
Inventors:
Stephen Milton, Gang Yang
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: May 22, 1995
Inventors
Stephen Milton
Gang Yang
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.