Granted Patent
Utility
US 5,289,409 · App. 08/073,457
Bipolar transistor memory cell and method
Inventor:
Robert M. Reinschmidt
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Jun 7, 1993
Inventor
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.