Granted Patent
Utility
US 6,595,029 · App. 09/662,924
Process for devices for the production of internally-hardened glass tubes as well as their use
Inventors:
Erhard Dick, Erich Fischer, Roland Fuchs
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Sep 15, 2000
Inventors
Erhard Dick
Erich Fischer
Roland Fuchs
Assignee (at issue)
Schott Spezialglas GmbH
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.