Granted Patent
Utility
US 6,723,145 · App. 10/039,081
Open powder booth collection design
Inventor:
David Cole
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Jan 2, 2002
Inventor
David Cole
Assignee (at issue)
Dürr 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.