Granted Patent
Utility
US 4,115,872 · App. 05/801,773
Amorphous semiconductor memory device for employment in an electrically alterable read-only memory
Inventor:
Vernon A. Bluhm
Patented Case
View Patent ↗
Granted: Sep 19, 1978
Filed: May 31, 1977
Inventor
Vernon A. Bluhm
Assignee (at issue)
Burroughs, 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.