Patent US2965611A successfully refreshed from Google Patents.
US2965611A
Expired / Lapsed
US
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Polyphenol glycidyl ethers
Assignee: Shell USA Inc
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Filing: 1958-08-26
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Granted: 1960-12-20
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Expires: 1978-08-26
Abstract
No abstract record available.
Inventors
- 👤 Carl G Schwarzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:35
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3218; C07; C07C; C07C37/00; C07C37/11; C07C37/20; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T442/00; Y10T442/20; Y10T442/2361
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A POLY(4-(EPOXYALKOXY)ARYL)PROPANE HAVING FROM 3 TO 6 CARBON ATOMS IN THE EPOXYALKOXY RADICAL AND HAVING N EPOXYALKOXYPHENYL RADICALS WHERE N IS AN INTEGER FROM 3 TO 4 AND THE INTERNAL CARBON ATOM OF THE PROPANE CHAIN IS SUBSTITUTED WITH TWO OF THE SAID EPOXYALKOXYPHENYL RADICALS, THE EPOXY GROUPS IN THE EPOXYALKOXYPHENYL RADICALS BEING IN A TERMINAL POSITION.
Claim 2
Dependent Claim
57 words
A POLY(4-(EPOXYALKOXY)ARYL)PROPANE HAVING FROM 3 TO 6 CARBON ATOMS IN THE EPOXYALKOXY RADICAL AND HAVING N EPOXYALKOXYPHENYL RADICALS WHERE N IS AN INTEGER FROM 3 TO 4 AND THE INTERNAL CARBON ATOM OF THE PROPANE CHAIN IS SUBSTITUTED WITH TWO OF THE SAID EPOXYALKOXYPHENYL RADICALS, THE EPOXY GROUPS IN THE EPOXYALKOXYPHENYL RADICALS BEING IN A TERMINAL POSITION.
References Cited (Backward Citations)
US2871221A
Cited
US2806016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |