Granted Patent
Utility
US 6,702,009 · App. 10/209,064
Select-fire pressure relief subassembly for a chemical cutter
Inventors:
Derrek D. Drury, Robert C. Andres
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Jul 30, 2002
Inventors
Derrek D. Drury
Robert C. Andres
Assignee (at issue)
DIAMONDBACK Industries, Inc.
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.