Patent US2941003A successfully refreshed from Google Patents.
US2941003A
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New sulfur and phosphorus-containing hydroxy polyamines and their preparation
Assignee: Shell USA Inc
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Filing: 1956-04-30
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Granted: 1960-06-14
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Edward C Shokal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:43
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/504; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A COMPOUND FROM THE GROUP N-(3-X-THIO-2-HYDROXYPROPYL)-Y, N-(3-DIX-PHOSPHINO-2-HYDROXYPROPYL)Y, N-(3-X-SULFONYL-2-HYDROXYPROPYL)-Y AND N-(3-DIXPHOSPHINYL-2-HYDROXYPROPYL)-Y WHEREIN X IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 2 TO 12 CARBON ATOMS, CYCLOHEXYL AND PHENYL, AND Y IS A POLYAMINE RADICAL SELECTED FROM THE GROUP CONSISTING OF ETHYLENE DIAMINE, POLYETHYLENE POLYAMINES HAVING FROM 2 TO 4 AMINE NITROGENS AND HAVING NO MORE THAN 12 CARBON ATOMS IN ANY ALKYL GROUP AND METAPHENYLENE DIAMINE.
Claim 2
Dependent Claim
71 words
A COMPOUND FROM THE GROUP N-(3-X-THIO-2-HYDROXYPROPYL)-Y, N-(3-DIX-PHOSPHINO-2-HYDROXYPROPYL)Y, N-(3-X-SULFONYL-2-HYDROXYPROPYL)-Y AND N-(3-DIXPHOSPHINYL-2-HYDROXYPROPYL)-Y WHEREIN X IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 2 TO 12 CARBON ATOMS, CYCLOHEXYL AND PHENYL, AND Y IS A POLYAMINE RADICAL SELECTED FROM THE GROUP CONSISTING OF ETHYLENE DIAMINE, POLYETHYLENE POLYAMINES HAVING FROM 2 TO 4 AMINE NITROGENS AND HAVING NO MORE THAN 12 CARBON ATOMS IN ANY ALKYL GROUP AND METAPHENYLENE DIAMINE.
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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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |