Granted Patent
Utility
US 4,388,705 · App. 06/307,641
Semiconductor memory circuit
Inventor:
Douglas P. Sheppard
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Oct 1, 1981
Inventor
Douglas P. Sheppard
Assignee (at issue)
Mostek 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.