US3080267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat hull structure and method of producing same
Assignee: Uniroyal Inc
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Filing: 1961-03-23
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Granted: 1963-03-05
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Expires: 1981-03-23
Abstract
No abstract record available.
Inventors
- 👤 William H Schmalz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:11
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14; B29C44/146; B29C44/1228; B29C44/1242; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/086; B63; B63B; B63B5/00; B63B5/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249984; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/31786; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A BOAT HULL STRUCTURE COMPRISING IN COMBINATION AN OUTER SHELL OF HIGH IMPACT STRENGTH THERMOPLASTIC GUM PLASTIC MATERIAL COMPRISING AN INTIMATE MIXTURE OF FROM 51% TO 90% BY WEIGHT OF A HARD, RESINOUS STYRENEACRYLONITRILE COPOLYMER AND CORRESPONDING FROM 49% TO 10% BY WEIGHT OF A SOFT, RUBBERY BUTADIENE-ACRYLONITRILE COPOLYMER AND AN INNER LAYER OF THERMOSETTING UNSATURATED POLYESTER RESIN COMPOSITION, THE SAID THERMOPLASTIC SHELL AND THERMOSETTING LAYER BEING SPACED FROM EACH OTHER AND UNITED TOGETHER BY AN INTERMEDIATE LAYER OF POLYURETHANE PLASTIC FOAM WHICH IS RELATIVELY THICK IN COMPARISON TO SAID THERMOPLASTIC SHELL AND THERMOSETTING INNER LAYER.
Claim 2
Dependent Claim
96 words
A BOAT HULL STRUCTURE COMPRISING IN COMBINATION AN OUTER SHELL OF HIGH IMPACT STRENGTH THERMOPLASTIC GUM PLASTIC MATERIAL COMPRISING AN INTIMATE MIXTURE OF FROM 51% TO 90% BY WEIGHT OF A HARD, RESINOUS STYRENEACRYLONITRILE COPOLYMER AND CORRESPONDING FROM 49% TO 10% BY WEIGHT OF A SOFT, RUBBERY BUTADIENE-ACRYLONITRILE COPOLYMER AND AN INNER LAYER OF THERMOSETTING UNSATURATED POLYESTER RESIN COMPOSITION, THE SAID THERMOPLASTIC SHELL AND THERMOSETTING LAYER BEING SPACED FROM EACH OTHER AND UNITED TOGETHER BY AN INTERMEDIATE LAYER OF POLYURETHANE PLASTIC FOAM WHICH IS RELATIVELY THICK IN COMPARISON TO SAID THERMOPLASTIC SHELL AND THERMOSETTING INNER LAYER.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |