Granted Patent
Utility
US 4,515,436 · App. 06/464,059
Single-mode single-polarization optical fiber
Inventors:
Richard E. Howard, William Pleibel, Jay R. Simpson, Rogers H. Stolen
Patented Case
View Patent ↗
Granted: May 7, 1985
Filed: Feb 4, 1983
Inventors
Richard E. Howard
William Pleibel
Jay R. Simpson
Rogers H. Stolen
Assignee (at issue)
AT&T Bell Laboratories
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.