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:
May. 18, 1993
Filed:
Sep. 15, 1992
Applicant:
Inventors:
John B Johenning, Los Angeles, CA (US);
Charles P Hall, Santa Rosa, CA (US);
Assignee:
Land and Sky Manufacturing, Inc., Lincoln, NE (US);
Primary Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
5451 ; 5450 ;
Abstract
A low tension waterbed mattress has a top with a plurality of expandable folds molded therein so that the top wall stretches when a user lies on the mattress so that the user is not lying on a taut sleeping surface. The folds have an aesthetic appearance. The mattress is typically filled to a volume providing a depth at least 3 inches less than the capacity of the mattress. The top wall of the mattress when pulled taut has a surface area at least 3% larger than the surface area of the bottom wall of the mattress.