Granted Patent
Utility
US 6,707,887 · App. 09/810,145
System and method for automatic detection of loop start and ground start trunks
Inventors:
Bertram Geck, Francisco Olympio Marcon da Rocha
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Mar 16, 2001
Inventors
Bertram Geck
Francisco Olympio Marcon da Rocha
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.