Granted Patent
Utility
US 4,749,039 · App. 06/896,554
Gun firing system using fluid filled pressure balance tubing
Inventors:
Roy R. Vann, Emmet F. Brieger, Flint R. George, Edward A. Colle, Jr., Hilton B. Jones
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Aug 14, 1986
Inventors
Roy R. Vann
Emmet F. Brieger
Flint R. George
Edward A. Colle, Jr.
Hilton B. Jones
Assignee (at issue)
Halliburton
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.