Granted Patent
Utility
US 4,581,624 · App. 06/585,094
Microminiature semiconductor valve
Inventor:
James M. O'Connor
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Mar 1, 1984
Inventor
James M. O'Connor
Assignee (at issue)
ALLIED CONSULTING, INC.
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.