Granted Patent
Utility
US 6,257,909 · App. 09/327,969
Rotary joint with flat conductor and circular conductor
Inventors:
Frank Schroer, Wolfgang Reber
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Jun 8, 1999
Inventors
Frank Schroer
Wolfgang Reber
Assignee (at issue)
ALCATEL
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.