Granted Patent
Utility
US 4,093,985 · App. 05/739,356
Memory sparing arrangement
Inventor:
Santanu Das
Patented Case
View Patent ↗
Granted: Jun 6, 1978
Filed: Nov 5, 1976
Inventor
Santanu Das
Assignee (at issue)
North Electric Company
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.