Granted Patent
Utility
US 4,260,021 · App. 06/002,197
Plug catcher tool
Inventor:
James D. Mott
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Jan 9, 1979
Inventor
James D. Mott
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.