Granted Patent
Utility
US 4,537,428 · App. 06/379,814
Joint and joint components for pipe sections subjected to axial compression loads
Inventor:
L. Steven Landriault
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: May 19, 1982
Inventor
L. Steven Landriault
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.