US3099683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tris maleic acid and fumaric acid halfesters of c6 to c10 saturated triols
Assignee: Shell USA Inc
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Filing: 1961-02-27
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Granted: 1963-07-30
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred J L Toombs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:52
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A TRI-HALF ESTER OF OF A TRIOL OF 6 TO 10 CARBON ATOMS PER MOLECULE AND A DICARBOXYLIC ACID, SAID ESTER HAVING THE FORMULA:
Claim 2
Dependent Claim
24 words
A TRI-HALF ESTER OF OF A TRIOL OF 6 TO 10 CARBON ATOMS PER MOLECULE AND A DICARBOXYLIC ACID, SAID ESTER 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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |