Granted Patent
Utility
US 5,609,440 · App. 08/490,057
Apparatus and method for arresting the propagation of a buckle in a pipeline
Inventor:
Joseph R. Roche
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Jun 16, 1995
Inventor
Joseph R. Roche
Assignee (at issue)
Hydril Company
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.