US4073020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contoured foam mattress
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1976-04-19
•
Granted: 1978-02-14
•
Expires: 1996-04-19
Abstract
Abstract A foam mattress having a crown area with cored-out areas therein to modify the harshness of feel of said mattress.
Inventors
- 👤 Robert J. Stalter
- 👤 Theodore B. Burkholder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:08
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/142; A47C27/146
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
81 words
A molded foam mattress of essentially a rectangular shape and having a crown, said crown being divided into a decorative segment by cored-out areas, said coring being positioned to give a geometric pattern of grooves that extend continuously in lengths no more than 4 inches before the grooves terminate or change directions to give raised portions relative to the groove, each portion being capable of being compressed independent of any other portion for at least 10 percent of its compression deflection.
Claim 2
Dependent Claim
81 words
A molded foam mattress of essentially a rectangular shape and having a crown, said crown being divided into a decorative segment by cored-out areas, said coring being positioned to give a geometric pattern of grooves that extend continuously in lengths no more than 4 inches before the grooves terminate or change directions to give raised portions relative to the groove, each portion being capable of being compressed independent of any other portion for at least 10 percent of its compression deflection.
Claim 3
Dependent Claim
33 words
The foam mattress of claim 1 wherein the depth of the cored-out area varies from about 0.5 to about 2 inches to give areas whose raised portions have a controlled degree of compression.
Claim 4
Dependent Claim
13 words
The foam mattress core of claim 1 wherein the geometric pattern is hexagonal.
Claim 5
Dependent Claim
34 words
The foam mattress core of claim 1 wherein the cored-out areas in the crown extend no closer than one inch of each edge of the core to leave an uncored strip adjacent each edge.
Claim 6
Dependent Claim
24 words
The foam mattress core of claim 1 wherein the geometric pattern is formed by curved members to leave raised portions inside said curved members.
Claim 7
Dependent Claim
21 words
The foam mattress core of claim 1 wherein the geometric pattern extends across the core on a bias to each edge.
References Cited (Backward Citations)
US2785739A
Cited
GB784047A
Cited
US3233885A
Cited
US3258791A
Cited
CH423129A
Cited
US3287750A
Cited
US3566423A
Cited
US3833260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |