US3312641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl alcohol plasticized amylose compositions
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1963-06-19
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Granted: 1967-04-04
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Expires: 1983-06-19
Abstract
No abstract record available.
Inventors
- 👤 Austin H Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:11
CPC Classifications
C; C08; C08L; C08L3/00; C08L3/12; C08L29/00; C08L29/02; C08L29/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A COMPOSITION COMPRISING FROM 5 TO 90 PARTS BY WEIGHT OF A POLYVINYL ALCOHOL PORTION AND CORRESPONDINGLY FROM 95 TO 10 PARTS BY WEIGHT OF AN AMYLOSE PORTION HAVING MORE THAN 50% BY WEIGHT AMYLOSE, SAID AMYLOSE PORTION CONTAINING AN AMYLOSIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE AMYLOSE FRACTION OF STARCH AND WHOLE STARCH CONTAINING AT LEAST 50% BY WEIGHT AMYLOSE.
Claim 2
Dependent Claim
63 words
A COMPOSITION COMPRISING FROM 5 TO 90 PARTS BY WEIGHT OF A POLYVINYL ALCOHOL PORTION AND CORRESPONDINGLY FROM 95 TO 10 PARTS BY WEIGHT OF AN AMYLOSE PORTION HAVING MORE THAN 50% BY WEIGHT AMYLOSE, SAID AMYLOSE PORTION CONTAINING AN AMYLOSIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE AMYLOSE FRACTION OF STARCH AND WHOLE STARCH CONTAINING AT LEAST 50% BY WEIGHT AMYLOSE.
References Cited (Backward Citations)
US2406905A
Cited
US2656571A
Cited
GB770089A
Cited
GB847431A
Cited
FR1225463A
Cited
US3133890A
Cited
US3067067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |