Granted Patent
Utility
US 4,661,136 · App. 06/766,851
Process of fabricating an elongated glass body particularly a preform for optical waveguides
Inventors:
Reimund Dorn, Armin Baumgartner, Anca Gutu-Nelle
Patented Case
View Patent ↗
Granted: Apr 28, 1987
Filed: Aug 16, 1985
Inventors
Reimund Dorn
Armin Baumgartner
Anca Gutu-Nelle
Assignee (at issue)
International Standard Electric 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.