Granted Patent
Utility
US 6,742,966 · App. 10/044,467
Expansion shell assembly
Inventor:
James Cook
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Jan 11, 2002
Inventor
James Cook
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.