Granted Patent
Utility
US 6,409,977 · App. 09/309,924
Reactor tube loading device
Inventors:
Jamie Stewart Harper, Karl Barry Thew
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: May 11, 1999
Inventors
Jamie Stewart Harper
Karl Barry Thew
Assignee (at issue)
SHELL OIL 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.