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. 04, 1976
Filed:
Dec. 23, 1974
James Rogers Lawrence, Carthage, MO (US);
Chester R Yates, Carthage, MO (US);
Steadley Company, Inc., Carthage, MO (US);
Abstract
A coil spring supporting grid structure of the type used to reinforce the top surface of a box spring foundation unit is provided with formations on the longitudinal and transverse wires thereof, enabling a snap-in interconnection with a plurality of coil springs to form a spring unit assembly. Each coil spring convolute engaged by the grid structure is supported on a pair of upwardly extending formations from a pair of spaced parallel first wires and is locked in place by means of two downwardly depending formations from a pair of spaced parallel second wires which extend transversely with respect to the first wires to form the grid.