Granted Patent
Utility
US 4,664,689 · App. 06/833,147
Method and apparatus for rapidly cooling optical fiber
Inventor:
Robert B. Davis
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Feb 27, 1986
Inventor
Robert B. Davis
Assignee (at issue)
Union Carbide Corporation
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.