Granted Patent
Utility
US 4,980,243 · App. 07/376,579
Direct bonding of ceramic parts by a silver alloy solder
Inventors:
Willi Malikowski, Wolfgang Weise
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Jul 7, 1989
Inventors
Willi Malikowski
Wolfgang Weise
Assignee (at issue)
Degussa AG
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.