Granted Patent
Utility
US 6,752,433 · App. 10/228,656
Swivel coupling
Inventor:
Brian Frost
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: Aug 27, 2002
Inventor
Brian Frost
Assignee (at issue)
Campbell Hausfeld / Scott Fetzer Company
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.