Granted Patent
Utility
US 4,890,751 · App. 06/588,594
Deployment/retrieval system
Inventor:
Everett W. Opdahl
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Mar 12, 1984
Inventor
Everett W. Opdahl
Assignee (at issue)
Westinghouse Electric Company LLC
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.