US3368987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch composition modified with half amide/half salt styrene maleic anhydride copolymers
Assignee: Monsanto Co
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Filing: 1965-01-04
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Granted: 1968-02-13
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Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Pollart
- 👤 August F Ottinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:16
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/54; C; C08; C08B; C08B31/00; C08F; C08F8/00; C08F8/30; C08F8/32; C08F8/44; C08L; C08L3/00; C08L3/02; C08L35/00; C08L35/06; C09; C09J; C09J103/00; C09J103/02; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/28; D21H17/33; D21H17/34; D21H17/35; D21H17/37; D21H17/375; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2640819A
Cited
US3259596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |