Granted Patent
Utility
US 6,289,993 · App. 09/338,752
Blowout preventer protector and setting tool
Inventor:
L. Murray Dallas
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Jun 23, 1999
Inventor
L. Murray Dallas
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.