IP Library Granted Patent US 5,560,057
Granted Patent Utility
US 5,560,057 · App. 08/269,557

Turning air mattress

Inventors: Roger Taylor Madsen, Thomas H. Ludden
Patented Case View Patent ↗
Granted: Oct 1, 1996 Filed: Jul 1, 1994
Inventors
Roger Taylor Madsen
Thomas H. Ludden

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.

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Quick Facts
Patent No.
US 5,560,057
App. No.
08/269,557
Filed
1994-07-01
Granted
1996-10-01
Kind
A