Granted Patent
Utility
US 4,472,453 · App. 06/510,174
Process for radiation free electron beam deposition
Inventor:
Dorothy M. Hoffman
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Jul 1, 1983
Inventor
Dorothy M. Hoffman
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.