Patent US3140086A successfully refreshed from Google Patents.
US3140086A
Expired / Lapsed
US
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Seat construction
Assignee: Individual
•
Filing: 1961-09-25
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Granted: 1964-07-07
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Expires: 1981-09-25
Abstract
No abstract record available.
Inventors
- 👤 David E Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:37
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; A47C7/20; Y; Y10; Y10S; Y10S297/00; Y10S297/01; Y10S297/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A LOAD SUPPORTING STRUCTURE, COMPRISING A FRAME, A FOAM PLASTIC CUSHION SUPPORTED BY THE FRAME AND HAVING AN OUTER LOAD SUPPORTING SURFACE, REINFORCING MEANS EMBEDDED WITHIN AND BONDED TO THE FOAM PLASTIC CUSHION, SAID REINFORCING MEANS INCLUDING A FIRST PORTION DISPOSED PARALLEL TO SAID OUTER SURFACE AND INCLUDING A SECOND PORTION DISPOSED GENERALLY PARALLEL TO SAID OUTER SURFACE AND SPACED FROM SAID FIRST PORTION AND IDSPOSED IN OVERLAPPING RELATION WITH SAID FIRST PORTION, MEANS FOR ATTACHING SAID FRIST PORTION TO THE FRAME, AND MEANS FOR ATTACHING SAID SECOND PORTION TO THE FRAME AT A LOCATION SPACED FROM THE POSITION OF ATTACHMENT OF SAID FIRST PORTION TO THE FRAME, SAID PORTIONS OF SAID REINFORCING MEANS TENDING TO MOVE RELATIVE TO EACH OTHER IN THEIR RESPECTIVE PLANES WHEN A LEAD IS APPLIED TO THE CUSHION TO THEREBY DEVELOP A SHEAR STRESSS WITHIN THE PORTION OF THE FOAM PLASTIC LOACED BETWEEN THE OVERLAPPING PORTIONS WITH THE SHEAR STRESS EFFECTIVELY RESISTING THE LOAD APPLIED TO THE CUSHION.
Claim 2
Dependent Claim
163 words
A LOAD SUPPORTING STRUCTURE, COMPRISING A FRAME, A FOAM PLASTIC CUSHION SUPPORTED BY THE FRAME AND HAVING AN OUTER LOAD SUPPORTING SURFACE, REINFORCING MEANS EMBEDDED WITHIN AND BONDED TO THE FOAM PLASTIC CUSHION, SAID REINFORCING MEANS INCLUDING A FIRST PORTION DISPOSED PARALLEL TO SAID OUTER SURFACE AND INCLUDING A SECOND PORTION DISPOSED GENERALLY PARALLEL TO SAID OUTER SURFACE AND SPACED FROM SAID FIRST PORTION AND IDSPOSED IN OVERLAPPING RELATION WITH SAID FIRST PORTION, MEANS FOR ATTACHING SAID FRIST PORTION TO THE FRAME, AND MEANS FOR ATTACHING SAID SECOND PORTION TO THE FRAME AT A LOCATION SPACED FROM THE POSITION OF ATTACHMENT OF SAID FIRST PORTION TO THE FRAME, SAID PORTIONS OF SAID REINFORCING MEANS TENDING TO MOVE RELATIVE TO EACH OTHER IN THEIR RESPECTIVE PLANES WHEN A LEAD IS APPLIED TO THE CUSHION TO THEREBY DEVELOP A SHEAR STRESSS WITHIN THE PORTION OF THE FOAM PLASTIC LOACED BETWEEN THE OVERLAPPING PORTIONS WITH THE SHEAR STRESS EFFECTIVELY RESISTING THE LOAD APPLIED TO THE CUSHION.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |