US3833682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber-modified thermosets and process
Assignee: Ford Motor Co
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Filing: 1973-05-29
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Granted: 1974-09-03
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Expires: 1993-05-29
Abstract
Abstract IMPROVEMENTS IN IMPACT STRENGTH AND FATIGUE PROPERTIES IN THERMOSET MATERIALS ARE MADE BY INCORPORATING THEREIN PARTICULATE GRADED-RUBBER HAVING SURFACE FUNCTIONALITY FOR REACTION WITH CONSTITUENTS OF THE THERMOSETS. A VARIETY OF NOVEL THERMOSET MATERIALS ARE PRODUCED UNDER VARIATIONS OF THIS PROCESS. THE GRADED-RUBBER PARTICULES ARE CHARACTERIZED BY HAVING A RUBBERY CORE ND A GLASS-LIKE POLYMERIC OUTER SHELL.
Inventors
- 👤 R Dickie
- 👤 S Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:28
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/246; C08F; C08F265/00; C08F265/04; C08F265/06; C08F8/00; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |