Granted Patent
Utility
US 6,367,283 · App. 09/550,377
Three-stage electronically variable orifice tube
Inventor:
Brian Enderle
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Apr 14, 2000
Inventor
Brian Enderle
Assignee (at issue)
RANCO CO., Ltd.
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.