Granted Patent
Utility
US 4,389,705 · App. 06/294,842
Semiconductor memory circuit with depletion data transfer transistor
Inventor:
Douglas P. Sheppard
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Aug 21, 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.