Granted Patent
Utility
US 4,291,815 · App. 06/122,527
Ceramic lid assembly for hermetic sealing of a semiconductor chip
Inventors:
Richard Gordon, John Ciallella
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Feb 19, 1980
Inventors
Richard Gordon
John Ciallella
Assignee (at issue)
Consolidated Refining Co., Inc.
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.