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:
Mar. 22, 1977
Filed:
Oct. 10, 1975
Applicant:
Inventors:
John Thomas King, Sarcoxie, MO (US);
Blondie Butler, Carthage, MO (US);
Francis R Struewing, deceased, late of Carthage, MO (US);
Assignee:
Legget & Platt Incorporated, Carthage, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
5247 ; 5257 ;
Abstract
A box spring assembly for use as a foundation for a bed mattress. The assembly comprises a wooden frame, slats, spiral springs, corner coil springs, a border wire, and a welded wire top grid. The spiral springs extend parallel to the wooden slats and are secured at the bottom to the slats and at the top to the welded wire grid. Corner reinforcement and resiliency is provided by four corner coil springs, each of which is secured at the bottom to the wooden frame and at the top to the border wire and grid.