Patent US3344216A successfully refreshed from Google Patents.
US3344216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of casting amylose films
Assignee: —
•
Filing: 1964-01-06
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Granted: 1967-09-26
•
Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:45
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/20; C08L; C08L3/00; C08L3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE PROCESS OF PREPARING DENSE, CONTINUOUS AMYLOSE FILMS WHICH COMPRISES DISSOLVING AMYLOSE IN WATER AT A TEMPERATURES OF AT LEAST 130*C. WITHOUT AN ORGANIC AMYLOSE-COMPLEXING AGENT, CASTING A FILM OF SAID AMYLOSE SOLUTION ON A SUPPORT HAVING A TEMPERATURE AT LEAST 10* C. LESS THEN THE GELATION TEMPERATURE OF THE AMYLOSE SOLUTION TO FORM A DIMENSIONALLY STABLE GEL, AND DRYING SAID AMYLOSE GEL UNDER RESTRAINT AT A TEMPERATURE ABOVE THE GELATION OF THE AMYLOSE SOLUTION TO FORM A DENSE FILM.
Claim 2
Dependent Claim
80 words
THE PROCESS OF PREPARING DENSE, CONTINUOUS AMYLOSE FILMS WHICH COMPRISES DISSOLVING AMYLOSE IN WATER AT A TEMPERATURES OF AT LEAST 130*C. WITHOUT AN ORGANIC AMYLOSE-COMPLEXING AGENT, CASTING A FILM OF SAID AMYLOSE SOLUTION ON A SUPPORT HAVING A TEMPERATURE AT LEAST 10* C. LESS THEN THE GELATION TEMPERATURE OF THE AMYLOSE SOLUTION TO FORM A DIMENSIONALLY STABLE GEL, AND DRYING SAID AMYLOSE GEL UNDER RESTRAINT AT A TEMPERATURE ABOVE THE GELATION OF THE AMYLOSE SOLUTION TO FORM A DENSE FILM.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |