Patent US3397912A successfully refreshed from Google Patents.
US3397912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling for a seat
Assignee: Individual
•
Filing: 1965-06-02
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Granted: 1968-08-20
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Expires: 1985-06-02
Abstract
No abstract record available.
Inventors
- 👤 Bush Robin Beaufort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:35
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/026; A47C1/027; A47C1/03; A47C1/0308
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN COMBINATION WITH A CHAIR SEAT, A TILTABLE BACK AND AN OVERLAPPING SUPPORT BASE COMPRISING A FLEXIBLE COUPLING HAVING A FIRST MEMBER MADE OF RESILIENT MATERIAL INTERPOSED BETWEEN SAID BACK AND SUPPORT BASE, SAID RESILIENT MAEMBER HAVING TWO PAIRS OF OPPOSED APERTURES, A SECOND MEMBER REMOVED FROM SAID FIRST MEMBER AND BEAR ING AGAINST THE FACE OF ONE OF SAID BACK AND OVERLAPPING SUPPORT BASE, SAID SECOND MEMBER HAVING EXTENSIONS TRAVERSING THE NEAREST OF SAID BACK AND OVERLAPPING SUPPORT BASE AND ENGAGING ONE OF SAID PAIRS OF APERTURES, A THIRD MEMBER REMOVED FROM SAID BACK FIRST MEMBER AND BEAR ING AGAINST THE OTHER OF SAID BACK AND OVERLAPPING SUPPORT BASE, SAID THIRD MEMBER HAVING EXTENSIONS TRAVERSING THE OTHER OF SAID BACK AND OVERLAPPING SUPPORT BASE AND ENGAGEABLE WITH THE OTHER OF SAID PAIR OF APERTURES, SAID ONE OF SAID BACK AND SUPPORT BASE HAVING AN APERTURE WITH PERIPHERAL TEETH THEREON AND SAID SECOND MEMBER HAVING A TOOTHED FLANGE ENGAGEABLE WITH SAID PERIPHERAL TEETH TO EFFECT ADJUSTABLE INTERLOCKING OF SAID TILTABLE BACK AND OVERLAPPING SUPPORT BASE.
Claim 2
Dependent Claim
175 words
IN COMBINATION WITH A CHAIR SEAT, A TILTABLE BACK AND AN OVERLAPPING SUPPORT BASE COMPRISING A FLEXIBLE COUPLING HAVING A FIRST MEMBER MADE OF RESILIENT MATERIAL INTERPOSED BETWEEN SAID BACK AND SUPPORT BASE, SAID RESILIENT MAEMBER HAVING TWO PAIRS OF OPPOSED APERTURES, A SECOND MEMBER REMOVED FROM SAID FIRST MEMBER AND BEAR ING AGAINST THE FACE OF ONE OF SAID BACK AND OVERLAPPING SUPPORT BASE, SAID SECOND MEMBER HAVING EXTENSIONS TRAVERSING THE NEAREST OF SAID BACK AND OVERLAPPING SUPPORT BASE AND ENGAGING ONE OF SAID PAIRS OF APERTURES, A THIRD MEMBER REMOVED FROM SAID BACK FIRST MEMBER AND BEAR ING AGAINST THE OTHER OF SAID BACK AND OVERLAPPING SUPPORT BASE, SAID THIRD MEMBER HAVING EXTENSIONS TRAVERSING THE OTHER OF SAID BACK AND OVERLAPPING SUPPORT BASE AND ENGAGEABLE WITH THE OTHER OF SAID PAIR OF APERTURES, SAID ONE OF SAID BACK AND SUPPORT BASE HAVING AN APERTURE WITH PERIPHERAL TEETH THEREON AND SAID SECOND MEMBER HAVING A TOOTHED FLANGE ENGAGEABLE WITH SAID PERIPHERAL TEETH TO EFFECT ADJUSTABLE INTERLOCKING OF SAID TILTABLE BACK AND OVERLAPPING SUPPORT BASE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |