Granted Patent
Utility
US 6,769,287 · App. 10/321,294
Apparatus for testing structural component samples by impacting with ice balls
Inventors:
John D. Stewart, Scott James Morrison, Johnie Pollard Spruiell, Matthew John Sitzmann, Patrick Thomas Price, Steven Richard Smith
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Dec 17, 2002
Inventors
John D. Stewart
Scott James Morrison
Johnie Pollard Spruiell
Matthew John Sitzmann
Patrick Thomas Price
Steven Richard Smith
Assignee (at issue)
Haag Engineering Co.
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.