Granted Patent
Utility
US 4,609,220 · App. 06/648,968
Artificial hand device
Inventor:
Peter B. Scott
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Sep 10, 1984
Inventor
Peter B. Scott
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.