Granted Patent
Utility
US 4,632,684 · App. 06/636,210
Method of and apparatus for making optical preforms from tubular bodies
Inventors:
Kamran Karbassiyoon, Philip Edward Foster, Francis I. Akers, Daniel G. Fletcher
Patented Case
View Patent ↗
Granted: Dec 30, 1986
Filed: Jul 31, 1984
Inventors
Kamran Karbassiyoon
Philip Edward Foster
Francis I. Akers
Daniel G. Fletcher
Assignee (at issue)
ITT 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.