Granted Patent
Utility
US 6,021,114 · App. 08/844,418
Method and system for utilizing communications lines
Inventors:
Shmuel Shaffer, William J. Beyda
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Apr 18, 1997
Inventors
Shmuel Shaffer
William J. Beyda
Assignee (at issue)
Siemens Information and Communication Networks, 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.