Granted Patent
Utility
US 6,134,033 · App. 09/031,018
Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems
Inventors:
Neal S. Bergano, Carl R. Davidson
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Feb 26, 1998
Inventors
Neal S. Bergano
Carl R. Davidson
Assignee (at issue)
Tyco Submarine Systems Ltd.
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.