US3769248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch derivative protective colloids in emulsion polymer systems
Assignee: Anheuser Busch Companies LLC
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Filing: 1971-10-06
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Granted: 1973-10-30
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Expires: 1991-10-06
Abstract
Abstract THIS APPLICATION CONCERNS AQUEOUS VINYL ACETATE POLYMER AND COPOLYMER EMULSIONS STABILIZED WITH STARCH BASED COLLOID FORMING SUBSTANCES, SPECIFICALLY HYDROXYETHYL STARCH, HYDROXYPROPYL STARCH, CARBOXYMETHYL STARCH, METHYL-ALPHA-D-GLUCOSIDE, AND COMBINATIONS OF THESE.
Inventors
- 👤 L Kovats
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:57
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08
Claims Analysis
Total Claims: 0
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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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |