US3077469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphonium starch ethers
Assignee: Ingredion Inc
•
Filing: 1961-06-28
•
Granted: 1963-02-12
•
Expires: 1981-06-28
Abstract
No abstract record available.
Inventors
- 👤 Aszalos Adorian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:54
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11; C; C08; C08B; C08B31/00; C08B31/08; C08B31/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
AN ETHERIFICATION PRODUCT OF STARCH HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Dependent Claim
10 words
AN ETHERIFICATION PRODUCT OF STARCH HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2268126A
Cited
US2989520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |