Patent US3146030A successfully refreshed from Google Patents.
US3146030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cool cushion
Assignee: ALLISON CORP
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Filing: 1962-08-17
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Granted: 1964-08-25
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Expires: 1982-08-17
Abstract
No abstract record available.
Inventors
- 👤 Saul L Dennison
- 👤 Seltzer Moses
- 👤 Samuel M Seltzer
- 👤 Leonard S Dennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:24
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/42; A47C7/425; Y; Y10; Y10S; Y10S297/00; Y10S297/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A SEAT CUSHION CORE COMPRISING (A) A SUBSTANTIALLY RIGID FORMING MEMBER, AND (B) A COIL OF RESILIENT WIRE WOUND ABOUT THE FORMING MEMBER, (C) SAID FORMING MEMBER BEING IN SUBSTANTIALLY RIGID SECTIONS, (D) SAID SECTIONS SPACED APART, (E) SUBSTANTIALLY RIGID MEANS FOR CONNECTING SAID SECTIONS IN SAID SPACED-APART RELATIONS, (F) SAID COIL OF RESILIENT WIRE DIVIDED INTO A PLURALITY OF HELICES, (G) ONE HELIX SURROUNDING EACH RIGID FORMING MEMBER SECTION, (H) EACH SAID SECTION HAVING AN EXTERNAL DIAMETER LESS THAN THE INTERNAL DIAMETER OF ITS HELIX (I) SO THAT THE HELIX IS PERMITTED A LATERAL FREE MOVEMENT RELATIVELY TO ITS SAID SECTION IN ADDITION TO A FLATTENING MOVEMENT OF THE HELIX INCIDENT TO SUPERPOSITION OF LOAD, (J) THE EXTERNAL DIAMETER OF THE HELICES IN RELATION TO THE SPACING BETWEEN ADJACENT SECTIONS BEING SUCH AS TO RESTRAIN THE LATERAL MOVEMENT OF THE HELICES SHORT OF A POINT WHERE THE HELICES CAN OVERLAP OR CROSS.
Claim 2
Dependent Claim
153 words
A SEAT CUSHION CORE COMPRISING (A) A SUBSTANTIALLY RIGID FORMING MEMBER, AND (B) A COIL OF RESILIENT WIRE WOUND ABOUT THE FORMING MEMBER, (C) SAID FORMING MEMBER BEING IN SUBSTANTIALLY RIGID SECTIONS, (D) SAID SECTIONS SPACED APART, (E) SUBSTANTIALLY RIGID MEANS FOR CONNECTING SAID SECTIONS IN SAID SPACED-APART RELATIONS, (F) SAID COIL OF RESILIENT WIRE DIVIDED INTO A PLURALITY OF HELICES, (G) ONE HELIX SURROUNDING EACH RIGID FORMING MEMBER SECTION, (H) EACH SAID SECTION HAVING AN EXTERNAL DIAMETER LESS THAN THE INTERNAL DIAMETER OF ITS HELIX (I) SO THAT THE HELIX IS PERMITTED A LATERAL FREE MOVEMENT RELATIVELY TO ITS SAID SECTION IN ADDITION TO A FLATTENING MOVEMENT OF THE HELIX INCIDENT TO SUPERPOSITION OF LOAD, (J) THE EXTERNAL DIAMETER OF THE HELICES IN RELATION TO THE SPACING BETWEEN ADJACENT SECTIONS BEING SUCH AS TO RESTRAIN THE LATERAL MOVEMENT OF THE HELICES SHORT OF A POINT WHERE THE HELICES CAN OVERLAP OR CROSS.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |