US2497579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbohydrate preservative
Assignee: Hercules Powder Co
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Filing: 1947-12-26
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Granted: 1950-02-14
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Expires: 1967-12-26
Abstract
No abstract record available.
Inventors
- 👤 Edward A Bried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:31
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/62; C; C08; C08L; C08L3/00; C08L3/02; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11; D21H17/20; D21H17/21; D21H17/24; D21H17/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A NEW COMPOSITION OF MATTER COMPRISING A CARBOHYDRATE AND A PRESERVATIVE THEREFOR SELECTED FROM THE GROUP CONSISTING OF A STABILIZED ROSIN AMINE AND THE SALTS THEREOF SAID PRESERVATIVE BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF ABOUT 0.25 AND 10% OF THE WEIGHT OF SAID CARBOHYDRATE.
Claim 2
Dependent Claim
47 words
A NEW COMPOSITION OF MATTER COMPRISING A CARBOHYDRATE AND A PRESERVATIVE THEREFOR SELECTED FROM THE GROUP CONSISTING OF A STABILIZED ROSIN AMINE AND THE SALTS THEREOF SAID PRESERVATIVE BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF ABOUT 0.25 AND 10% OF THE WEIGHT OF SAID CARBOHYDRATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |