Granted Patent
Utility
US 6,447,201 · App. 09/541,341
Quick load relief coupler
Inventor:
Robert McCracken
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Apr 3, 2000
Inventor
Robert McCracken
Assignee (at issue)
Wilian Holding Co.
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.