Granted Patent
Utility
US 6,162,655 · App. 09/228,218
Method of fabricating an expanded beam optical waveguide device
Inventors:
John Evan Johnson, Leonard Jan-Peter Ketelsen, Janet L. Lentz, Charles H. Joyner, Sharon K. Sputz
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Jan 11, 1999
Inventors
John Evan Johnson
Leonard Jan-Peter Ketelsen
Janet L. Lentz
Charles H. Joyner
Sharon K. Sputz
Assignee (at issue)
LUCENT TECHNOLOGIES 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.