Granted Patent
Utility
US 5,137,849 · App. 07/600,509
Sealing glass for the production of glass-to-metal seals
Inventors:
Peter Brix, Ludwig Gaschler
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Oct 22, 1990
Inventors
Peter Brix
Ludwig Gaschler
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.