US2961339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free flowing, hydrophobic granular starch and method of making the same
Assignee: Individual
•
Filing: 1953-03-27
•
Granted: 1960-11-22
•
Expires: 1973-03-27
Abstract
No abstract record available.
Inventors
- 👤 Ivan A Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:33
CPC Classifications
C; C08; C08L; C08L3/00; C08L3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
THE METHOD COMPRISING SUBJECTION GRANULAR STARCH TO AN AQUEOUS SOLUTION OF AN ALKALI METAL SILICONATE, SEPARATING SAID STARCH FROM SAID SOLUTION THUS OBTAINING GRANULAR STARCH MOISTENED WITH RESIDUAL SOLUTION, DRYING SAID STARCH AND WASHING THE DRIED STARCH WITH WATER.
Claim 2
Independent Claim
39 words
THE METHOD COMPRISING SUBJECTION GRANULAR STARCH TO AN AQUEOUS SOLUTION OF AN ALKALI METAL SILICONATE, SEPARATING SAID STARCH FROM SAID SOLUTION THUS OBTAINING GRANULAR STARCH MOISTENED WITH RESIDUAL SOLUTION, DRYING SAID STARCH AND WASHING THE DRIED STARCH WITH WATER.
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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |