Patent US3313640A successfully refreshed from Google Patents.
US3313640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flowable starches
Assignee: BASF Corp
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Filing: 1963-08-08
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Granted: 1967-04-11
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Expires: 1983-08-08
Abstract
No abstract record available.
Inventors
- 👤 Bauer Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:58
CPC Classifications
C; C08; C08L; C08L3/00; C08L3/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
42 words
DRY, READILY FLOWABLE STRACH, CHARACTERIZED BY THE STARCH PARTICLES BEING ENVELOPED IN A FILM CNSTITUTING ABOUT 0.1 TO 40% OF THE WEIGHT OF THE STARCH AND CONSISTING OF A POLY-LOWER ALKYLENEGLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 800 TO ABOUT 50,000.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |