Granted Patent
Utility
US 6,556,340 · App. 09/851,379
Optical amplifiers and upgrade modules
Inventors:
Paul F. Wysocki, William S. Wong
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: May 9, 2001
Inventors
Paul F. Wysocki
William S. Wong
Assignee (at issue)
Onetta, 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.