US2725313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of soluble starch
Assignee: Stanley Manufacturing Co
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Filing: 1951-10-30
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Granted: 1955-11-29
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Expires: 1971-10-30
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Smith
- 👤 Lester P Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:20
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS OF THE RECOVERY OF SOLUBLE STARCH FROM SALTY STARCH WASTE WATERS RESULTING FROM THE PREPARATION OF MODIFIED STARCH, COMPRISING THE STEPS OF ADDING TO SAID WASTE WATER MAINTAINING AT A TEMPERATURE BELOW ABOUT 120* F. AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE AND CALCIUM HYDROXIDE IN AN AMOUNT SUFFICIENT TO EFFECT PRECIPITATION OF SAID SOLUBLE STARCH, AGITATING SAID MIXTURE FOR AT LEAST ABOUT 10 MINUTES AND SEPARATING SAID PRECIPIATATION FROM THE MIXTURE.
Claim 2
Dependent Claim
79 words
A PROCESS OF THE RECOVERY OF SOLUBLE STARCH FROM SALTY STARCH WASTE WATERS RESULTING FROM THE PREPARATION OF MODIFIED STARCH, COMPRISING THE STEPS OF ADDING TO SAID WASTE WATER MAINTAINING AT A TEMPERATURE BELOW ABOUT 120* F. AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE AND CALCIUM HYDROXIDE IN AN AMOUNT SUFFICIENT TO EFFECT PRECIPITATION OF SAID SOLUBLE STARCH, AGITATING SAID MIXTURE FOR AT LEAST ABOUT 10 MINUTES AND SEPARATING SAID PRECIPIATATION FROM THE MIXTURE.
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) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |