Granted Patent
Utility
US 6,349,439 · App. 09/117,694
Alternating pad
Inventors:
Stephen J. Cook, Christopher John Daughtery
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: May 3, 1999
Inventors
Stephen J. Cook
Christopher John Daughtery
Assignee (at issue)
Huntleigh Technology, PLC
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.