U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Independent block assembly of springs

Patent 4523344 Issued on June 18, 1985. Estimated Expiration Date: Icon_subject September 17, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

410133

681573

698529

831441

931361

975695

1208889

1284384

1287663

1434653

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Inventors

Assignee

Application

No. 06/419369 filed on 09/17/1982

US Classes:

5/655.8, Compartmentalized springs5/720Compartmentalized

Examiners

Primary: Smith, Gary L.
Assistant: Trettel, Michael F.

Attorney, Agent or Firm

International Classes

A47C 27/06 (20060101)
A47C 27/04 (20060101)

Abstract

A spring assembly is provided including a plurality of interconnected longitudinal blocks of pocketed coil springs. Each block includes a pair of interconnected strips of pocketed springs which are preferably arranged in a square array. Each pair of strips is tightly encased by a flexible cover. The covers are connected to each other along longitudinal hinge lines which allows the assembly to bend easily in at least one direction.

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