Granted Patent
Utility
US 6,771,636 · App. 09/323,563
Method and telecommunications system for transmitting data from a first to a second private branch exchange
Inventor:
Johan Feyaerts
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Jun 1, 1999
Inventor
Johan Feyaerts
Assignee (at issue)
Siemens Aktiengesellschaft
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.