Granted Patent
Utility
US 6,769,262 · App. 10/367,242
Chilling sleeve for expansion-fitting hollow cylinders
Inventor:
Luke Gray
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Feb 13, 2003
Inventor
Luke Gray
Assignee (at issue)
Babcock & Wilcox Canada Corp.
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.