Granted Patent
Utility
US 4,921,519 · App. 07/239,471
Manufacturing molded glass-articles for precision-optical purposes
Inventors:
Martin Schinker, Johannes Brormann, Dieter Stahn, Walter Doll, Gunter Kleer, Peter Manns
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Sep 1, 1988
Inventors
Martin Schinker
Johannes Brormann
Dieter Stahn
Walter Doll
Gunter Kleer
Peter Manns
Assignee (at issue)
Schott Glaswerke
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.