Granted Patent
Utility
US 5,997,003 · App. 08/788,223
Annular sealing assembly and methods of sealing
Inventor:
Edwin C. Turner
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Jan 27, 1997
Inventor
Edwin C. Turner
Assignee (at issue)
Cooper Cameron Corporation
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.