Patent US3112987A successfully refreshed from Google Patents.
US3112987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cushioned seats
Assignee: Austin Motor Co Ltd
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Filing: 1960-03-07
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Granted: 1963-12-03
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Expires: 1980-03-07
Abstract
No abstract record available.
Inventors
- 👤 Griffiths Frank
- 👤 Waldron Kevin Cyril
- 👤 Rajan Ramon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:20
CPC Classifications
A; A47; A47C; A47C5/00; A47C5/12; A47C5/125; A47C3/00; A47C3/12; Y; Y10; Y10S; Y10S297/00; Y10S297/01; Y10S297/03; Y10T; Y10T29/00; Y10T29/48; Y10T29/481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A METHOD OF MAKING A CUSHIONED SEAT, WHICH COMPRISES EMPLOYING A RIGID PAN-TYPE SEAT AND BACKREST FRAME AS ONE SHELL OF A MOLD THE COMPLEMENTARY SHELL OF WHICH IS SHAPED TO COMBINE BOTH THE CUSHION AND BACKREST PORTIONS OF THE SEAT; INTRODUCING INTO THE PORTION OF THE ASSEMBLED MOLD A FOAM-FORMING MIXTURE OF A POLYETHER/ISOCYANATE RESIN AND AN ACTIVATOR IN SUCH QUANTITY THAT THE RESULTING PLASTIC FOAM JUST FILLS THE RELEVANT MOLD PORTION WHEN FOAMING CEASES; SUBSEQUENTLY INTRODUCING THE FOAM FORMING MIXTURE AND ACTIVATOR INTO THE OTHER MOLD PORTION; AND ALLOWING THE PLASTIC FOAM TO SET BEFORE REMOVING THE CUSHIONED SEAT ASSEMBLY, THE CUSHION AND BACKREST PORTIONS OF THE MOLD BEING INITIALLY SEGREGATED BY A SLIDABLE PARTITION AT THEIR JUNCTION, BUT AFTER FOAMING HAS CEASED IN SAID ONE MOLD PORTION THE PARTITION IS PARTLY WITHDRAWN SO THAT THE SECTION OF FOAM THEREBY EXPOSED BECOMES UNTIED WITH THE FOAM SUBSEQUENTLY FORMED IN SAID OTHER MOLD PORTION.
Claim 2
Independent Claim
155 words
A METHOD OF MAKING A CUSHIONED SEAT, WHICH COMPRISES EMPLOYING A RIGID PAN-TYPE SEAT AND BACKREST FRAME AS ONE SHELL OF A MOLD THE COMPLEMENTARY SHELL OF WHICH IS SHAPED TO COMBINE BOTH THE CUSHION AND BACKREST PORTIONS OF THE SEAT; INTRODUCING INTO THE PORTION OF THE ASSEMBLED MOLD A FOAM-FORMING MIXTURE OF A POLYETHER/ISOCYANATE RESIN AND AN ACTIVATOR IN SUCH QUANTITY THAT THE RESULTING PLASTIC FOAM JUST FILLS THE RELEVANT MOLD PORTION WHEN FOAMING CEASES; SUBSEQUENTLY INTRODUCING THE FOAM FORMING MIXTURE AND ACTIVATOR INTO THE OTHER MOLD PORTION; AND ALLOWING THE PLASTIC FOAM TO SET BEFORE REMOVING THE CUSHIONED SEAT ASSEMBLY, THE CUSHION AND BACKREST PORTIONS OF THE MOLD BEING INITIALLY SEGREGATED BY A SLIDABLE PARTITION AT THEIR JUNCTION, BUT AFTER FOAMING HAS CEASED IN SAID ONE MOLD PORTION THE PARTITION IS PARTLY WITHDRAWN SO THAT THE SECTION OF FOAM THEREBY EXPOSED BECOMES UNTIED WITH THE FOAM SUBSEQUENTLY FORMED IN SAID OTHER MOLD PORTION.
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |