The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 1979
Filed:
Nov. 04, 1977
Applicant:
Inventor:
John T Scales, Stanmore, GB;
Assignee:
The Institute of Orthopaedics, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47C / ; A47C / ;
U.S. Cl.
CPC ...
5365 ; 5 91 ; 5347 ;
Abstract
A mattress of resilient foam has a separate cover formed from a chemically/physico-chemically porous material to transmit water/vapor on the outer side of the surface, due to differential water vapor pressure to within the mattress from which it can disperse.