Patent US3143339A successfully refreshed from Google Patents.
US3143339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion construction and springs therefor
Assignee: American Metal Products Co
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Filing: 1961-08-17
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Granted: 1964-08-04
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Expires: 1981-08-17
Abstract
No abstract record available.
Inventors
- 👤 Hyland C Flint
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:46
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A CUSHION CONSTRUCTION, A FRAME HAVING FRONT AND REAR FRAME MEMBERS SPACED BY SIDE MEMBERS, A PLURALITY OF SPRING STRIPS EXTENDING BETWEEN THE FRAME MEMBERS, THE SPRING STRIPS BEING MADE OF WIRE HAVING DOWNWARDLY EXTENDING FRONT END SUPPORTING SECTIONS WITH THE ENDS SECURED IN FIXED RELATION TO THE FRONT FRAME MEMBER, THE REAR ENDS OF THE SPRING STRIPS HAVING AN UPWARDLY AND FORWARDLY EXTENDING SECTION DISPOSED AT AN ACUTE ANGLE TO THE REAR END PORTION OF THE SPRING STRIP, AND MEANS FOR ATTACHING THE UPWARDLY AND FORWARDLY EXTENDING SECTION OF THE SPRING STRIP IN FREE PIVOTAL RELATION ON THE REAR FRAME MEMBER, THE ENDMOST SPRING STRIPS AND ALTERNATE SPRING STRIP THEREBETWEEN BEING OF HIHG CONSTRUCTION, WITH ADDITIONAL SPRING STRIPS OF LESS HEIGHT THAN THE FIRST SAID ALTERNATE SPRING STRIPS DISPOSED THEREBETWEEN.
Claim 2
Dependent Claim
132 words
IN A CUSHION CONSTRUCTION, A FRAME HAVING FRONT AND REAR FRAME MEMBERS SPACED BY SIDE MEMBERS, A PLURALITY OF SPRING STRIPS EXTENDING BETWEEN THE FRAME MEMBERS, THE SPRING STRIPS BEING MADE OF WIRE HAVING DOWNWARDLY EXTENDING FRONT END SUPPORTING SECTIONS WITH THE ENDS SECURED IN FIXED RELATION TO THE FRONT FRAME MEMBER, THE REAR ENDS OF THE SPRING STRIPS HAVING AN UPWARDLY AND FORWARDLY EXTENDING SECTION DISPOSED AT AN ACUTE ANGLE TO THE REAR END PORTION OF THE SPRING STRIP, AND MEANS FOR ATTACHING THE UPWARDLY AND FORWARDLY EXTENDING SECTION OF THE SPRING STRIP IN FREE PIVOTAL RELATION ON THE REAR FRAME MEMBER, THE ENDMOST SPRING STRIPS AND ALTERNATE SPRING STRIP THEREBETWEEN BEING OF HIHG CONSTRUCTION, WITH ADDITIONAL SPRING STRIPS OF LESS HEIGHT THAN THE FIRST SAID ALTERNATE SPRING STRIPS DISPOSED THEREBETWEEN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |