Granted Patent
Utility
US 6,202,239 · App. 09/257,404
Multi-zone support
Inventors:
Kevin M. Ward, Steve Hawkins
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Feb 25, 1999
Inventors
Kevin M. Ward
Steve Hawkins
Assignee (at issue)
Select Comfort Corporation
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.