Granted Patent
Utility
US 6,253,617 · App. 09/214,064
Process for testing the freeze-thaw resistance of solids
Inventor:
Max I. Setzer
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Dec 28, 1998
Inventor
Max I. Setzer
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.