Granted Patent
Utility
US 6,006,839 · App. 08/720,651
Pressurized flexible conduit injection system
Inventors:
Michael Dearing, Michael Lee Smith
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Oct 2, 1996
Inventors
Michael Dearing
Michael Lee Smith
Assignee (at issue)
STEWART & STEVENSON 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.