Granted Patent
Utility
US 4,864,540 · App. 07/155,022
Bipolar ram having no write recovery time
Inventors:
A. David Hashemi, Robert M. Reinschmidt
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Feb 11, 1988
Inventors
A. David Hashemi
Robert M. Reinschmidt
Assignee (at issue)
Digital Equipment 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.