Patent US5543751A successfully refreshed from Google Patents.
Patent US3076979A successfully refreshed from Google Patents.
US3076979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed construction
Assignee: No Sag Spring Co
•
Filing: 1959-08-18
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Granted: 1963-02-12
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Expires: 1979-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry Hopkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:53
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/12; A47C23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A SPRING SUPPORTING FRAME HAVING AN INWARDLY PRESENTING CHANNEL PORTION CONTAINING ALIGNED FLANGES AT THE OPEN SIDE FORMING A SLOT, AND T-SHAPED TABS DISPOSED WITHIN THE CHANNEL PORTION WITH ONE BRANCH OF THE TABS CONTAINING AN APERTURE, EACH SAID APERTURE-CONTAINING BRANCH EXTENDING FROM THE CHANNEL TO WITHIN THE SLOT FOR RECEIVING THE END OF A SPRING STRIP, SAID TAB SUPPORTING SAID SPRING END AGAINST MOVEMENT LONGITUDINALLY AND TRANSVERSELY OF SAID CHANNEL PORTION WHEN TENSION IS APPLIED THERETO BY SAID SPRING STRIP.
Claim 2
Dependent Claim
81 words
A SPRING SUPPORTING FRAME HAVING AN INWARDLY PRESENTING CHANNEL PORTION CONTAINING ALIGNED FLANGES AT THE OPEN SIDE FORMING A SLOT, AND T-SHAPED TABS DISPOSED WITHIN THE CHANNEL PORTION WITH ONE BRANCH OF THE TABS CONTAINING AN APERTURE, EACH SAID APERTURE-CONTAINING BRANCH EXTENDING FROM THE CHANNEL TO WITHIN THE SLOT FOR RECEIVING THE END OF A SPRING STRIP, SAID TAB SUPPORTING SAID SPRING END AGAINST MOVEMENT LONGITUDINALLY AND TRANSVERSELY OF SAID CHANNEL PORTION WHEN TENSION IS APPLIED THERETO BY SAID SPRING STRIP.
References Cited (Backward Citations)
US2864434A
Cited
US1684851A
Cited
US2568148A
Cited
US2615178A
Cited
US2842420A
Cited
US2908918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |