US3010941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-resistant spirobi (meta-dioxane) phenolic compositions
Assignee: Union Carbide Corp
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Filing: 1958-08-29
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Granted: 1961-11-28
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Expires: 1978-08-29
Abstract
No abstract record available.
Inventors
- 👤 Howard R Guest
- 👤 Ben W Kiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:52
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/30; C08G14/00; C08G14/02; C08G14/04; C08K; C08K3/00; C08K3/32; C08K5/00; C08K5/04; C08K5/06; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A CURABLE COMPOSITION COMPRISING 3,9-DIALKENYLSPIROBI(META-DIOXANE) HAVING BETWEEN TWO AND EIGHTEEN CARBON ATOMS IN EACH ALKENYL RADICAL, A PHENOL HAVING AT LEAST TWO HYDROGEN ATOMS ORTHO-PARA TO A PHENOLIC HYDROXYL GROUP, AND BETWEEN ABOUT 5 PERCENT AND 25 PERCENT BY WEIGHT, BASED ON THE TOTAL COMPOSITION WEIGHT, OF PARTIAL PHOSPHITE ESTER OF PENTAERYTHRITOL HAVING THE FORMULA:
Claim 2
Dependent Claim
55 words
A CURABLE COMPOSITION COMPRISING 3,9-DIALKENYLSPIROBI(META-DIOXANE) HAVING BETWEEN TWO AND EIGHTEEN CARBON ATOMS IN EACH ALKENYL RADICAL, A PHENOL HAVING AT LEAST TWO HYDROGEN ATOMS ORTHO-PARA TO A PHENOLIC HYDROXYL GROUP, AND BETWEEN ABOUT 5 PERCENT AND 25 PERCENT BY WEIGHT, BASED ON THE TOTAL COMPOSITION WEIGHT, OF PARTIAL PHOSPHITE ESTER OF PENTAERYTHRITOL HAVING THE FORMULA:
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) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |