Granted Patent
Utility
US 4,501,601 · App. 06/492,460
Process for manufacturing glass fiber optical waveguides
Inventor:
Herbert Haupt
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: May 5, 1983
Inventor
Herbert Haupt
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.