US3330775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solubilization process
Assignee: Chevron USA Inc
•
Filing: 1964-06-15
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Granted: 1967-07-11
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 David M Marquis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:19
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/52; A23L2/68; C; C07; C07C; C07C51/00; C07C51/42; C07C51/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A METHOD OF INCREASING THE SOLUBILITY RATE OF SOLID FUMARIC ACID IN WATER WHICH COMPRISES SUBSTANTIALLY HOMOGENEOUSLY INCORPORATING IN FUMARIC ACID FROM ABOUT 0.1 TO 67 PARTS OF A SULFAMATE SALT PER 100 PARTS BY WEIGHT OF SAID ACID, SAID SALT CONTAINING AT LEAST SIX CARBON ATOMS AND BEING OF THE FORMULA:
Claim 2
Independent Claim
52 words
A METHOD OF INCREASING THE SOLUBILITY RATE OF SOLID FUMARIC ACID IN WATER WHICH COMPRISES SUBSTANTIALLY HOMOGENEOUSLY INCORPORATING IN FUMARIC ACID FROM ABOUT 0.1 TO 67 PARTS OF A SULFAMATE SALT PER 100 PARTS BY WEIGHT OF SAID ACID, SAID SALT CONTAINING AT LEAST SIX CARBON ATOMS AND BEING OF 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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |