US3098646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring anchor means
Assignee: La Z Boy Inc
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Filing: 1961-10-17
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Granted: 1963-07-23
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Expires: 1981-10-17
Abstract
No abstract record available.
Inventors
- 👤 Edward M Knabusch
- 👤 Edwin J Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:23
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A SUPPORTING SEAT STRUCTURE, A FRAME, A FORE AND AFT EXTENDING ZIG-ZAG SPRING DISPOSED IN AN ARCHED PATHE AND HAVING SUBSTANTIALLY PARALLEL REACHES JOINED BY SEMICIRCULAR PORTIONS, AN ELONGATED FORE AND AFT EXTENDING CLIP HAVING A SURFACE ADJACENT ITS FRONT END PIVOTALLY ENGAGING A RADIALLY OUTER SURFACE OF ONE OF SAID PARALLEL REACHES OF SAID ARCHED SPRING AND AN ELONGATED FLAT PORTION EXTENDING REARWARDLY FROM SAID CLIP FRONT END AND ENGAGING A RADIALLY INNER SURFACE OF AN ADJACENT REACH OF SAID ARCHED SPRING, MEANS CONNECTING THE FRONT END OF SAID SPRING TO SAID FRAME AND MEANS INCLUDING A TENSION SPRING CONNECTING THE REARWARD END OF SAID SPRING TO SAID
Claim 2
Dependent Claim
110 words
IN A SUPPORTING SEAT STRUCTURE, A FRAME, A FORE AND AFT EXTENDING ZIG-ZAG SPRING DISPOSED IN AN ARCHED PATHE AND HAVING SUBSTANTIALLY PARALLEL REACHES JOINED BY SEMICIRCULAR PORTIONS, AN ELONGATED FORE AND AFT EXTENDING CLIP HAVING A SURFACE ADJACENT ITS FRONT END PIVOTALLY ENGAGING A RADIALLY OUTER SURFACE OF ONE OF SAID PARALLEL REACHES OF SAID ARCHED SPRING AND AN ELONGATED FLAT PORTION EXTENDING REARWARDLY FROM SAID CLIP FRONT END AND ENGAGING A RADIALLY INNER SURFACE OF AN ADJACENT REACH OF SAID ARCHED SPRING, MEANS CONNECTING THE FRONT END OF SAID SPRING TO SAID FRAME AND MEANS INCLUDING A TENSION SPRING CONNECTING THE REARWARD END OF SAID SPRING TO SAID
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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |