Granted Patent
Utility
US 4,751,968 · App. 06/940,875
Wellhead stabilizing member with deflecting ribs
Inventors:
Thomas J. Ames, Carl F. Boehm, Jr.
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Dec 10, 1986
Inventors
Thomas J. Ames
Carl F. Boehm, Jr.
Assignee (at issue)
Hughes Tool Company LLC
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.