Granted Patent
Utility
US 4,474,466 · App. 06/356,400
Measurement of deformation
Inventors:
Alaster McDonach, James McKelvie, Colin Walker
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Mar 9, 1982
Inventors
Alaster McDonach
James McKelvie
Colin Walker
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.