US2894014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex esters of beta-phosphato-alpha, beta-olefinically unsaturated monocarboxylic acids
Assignee: Shell Development Co
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Filing: 1955-12-28
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Granted: 1959-07-07
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Expires: 1975-12-28
Abstract
No abstract record available.
Inventors
- 👤 Alan R Stiles
- 👤 Richard R Whetstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:44
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/10; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/113
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A COMPOUND OF THE FORMULA WHEREIN R'' REPRESENTS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS TO 1 TO 8 CARBON ATOMS, R REPRESENTS AN ALKYL RADICAL OF 1 TO 8 CARBON ATOMS, R2 REPRESENTS AN ALKYLENE GROUP OF NOT MORE THAN 10 CARBON ATOMS R3 REPRESENTS A FUNCTIONAL GROUP INVOLVING OXYGEN HAVING NOT MORE THAN 10 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF -OR4 AND
Claim 2
Dependent Claim
70 words
A COMPOUND OF THE FORMULA WHEREIN R'' REPRESENTS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS TO 1 TO 8 CARBON ATOMS, R REPRESENTS AN ALKYL RADICAL OF 1 TO 8 CARBON ATOMS, R2 REPRESENTS AN ALKYLENE GROUP OF NOT MORE THAN 10 CARBON ATOMS R3 REPRESENTS A FUNCTIONAL GROUP INVOLVING OXYGEN HAVING NOT MORE THAN 10 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF -OR4 AND
References Cited (Backward Citations)
US2685552A
Cited
US2802856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |