Granted Patent
Utility
US 4,345,812 · App. 06/153,908
Electron tube base with flow channels therein
Inventor:
Myron H. Wardell, Jr.
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: May 28, 1980
Inventor
Myron H. Wardell, Jr.
Assignee (at issue)
RCA Corporation
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.