Granted Patent
Utility
US 5,065,331 · App. 06/886,747
Apparatus and method for determining the stress and strain in pipes, pressure vessels, structural members and other deformable bodies
Inventors:
Reginald Vachon, William F. Ranson
Patented Case
View Patent ↗
Granted: Nov 12, 1991
Filed: May 27, 1986
Inventors
Reginald Vachon
William F. Ranson
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.