Patent US3308037A successfully refreshed from Google Patents.
US3308037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of starch decomposition products
Assignee: West Virginia Pulp and Paper Co
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Filing: 1962-08-10
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Granted: 1967-03-07
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Goos Hanno
- 👤 Maurer Hans Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:35
CPC Classifications
C; C13; C13K; C13K1/00; C13K1/06; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/314; B01F25/3142; C08; C08B; C08B30/00; C08B30/12; C08B30/16; C08B31/00; C08B31/16; C12; C12M; C12M45/00; C12M45/06; C12P; C12P19/00; C12P19/14; Y; Y10; Y10S; Y10S261/00; Y10S261/10; Y10S366/00; Y10S366/601; Y10S435/00; Y10S435/813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A PROCESS FOR THE MANUFACTURE OF STARCH DECOMPOSITION PRODUCTS COMPRISING CONTINUOUSLY ADDING A CHEMICALLY ACTIVE STARCH MODIFICATION SUBSTANCE TO AN AQUEOUS SUSPENSION OF STARCH; FORMING A CONTINUOUS STREAM OF THE SO-OBTAINED MIXTURE; PASSING SAID STREAM THROUGH A ZONE AND ENFORCING TEMPORARY FLOW ACCELERATION IN SAID ZONE AND THEN PASSING SAID STREAM THROUGH A SECOND ZONE AND ENFORCING DECELERATION OF SAID STREAM IN SAID SECOND ZONE, THE ADDED STARCH MODIFICATION SUBSTANCE BEING THUS PERMITTED TO BECOME ACTIVE IN A REGION WHERE THE STREAM IS UNDER HIGH IMPOSED STRESS, WHICH EXISTS IN THE REGION IMMEDIATELY FOLLOWING SAID TEMPORARY FLOW ACCELERATION; ADMIXING STREAM WITH SAID MIXTURE DURING DECLERATION; REPEATING FLOW ACCERLERATION OF THE SO-OBTAINED PRODUCT; AND IMMEDIATELY AFTER SAID REPEATED FLWO ACCELERATION ADMIXING WITH SAID PRODUCT A REAGENT CAUSING THE STARCH MODIFICATION TO BE BROKEN OFF.
Claim 2
Dependent Claim
133 words
A PROCESS FOR THE MANUFACTURE OF STARCH DECOMPOSITION PRODUCTS COMPRISING CONTINUOUSLY ADDING A CHEMICALLY ACTIVE STARCH MODIFICATION SUBSTANCE TO AN AQUEOUS SUSPENSION OF STARCH; FORMING A CONTINUOUS STREAM OF THE SO-OBTAINED MIXTURE; PASSING SAID STREAM THROUGH A ZONE AND ENFORCING TEMPORARY FLOW ACCELERATION IN SAID ZONE AND THEN PASSING SAID STREAM THROUGH A SECOND ZONE AND ENFORCING DECELERATION OF SAID STREAM IN SAID SECOND ZONE, THE ADDED STARCH MODIFICATION SUBSTANCE BEING THUS PERMITTED TO BECOME ACTIVE IN A REGION WHERE THE STREAM IS UNDER HIGH IMPOSED STRESS, WHICH EXISTS IN THE REGION IMMEDIATELY FOLLOWING SAID TEMPORARY FLOW ACCELERATION; ADMIXING STREAM WITH SAID MIXTURE DURING DECLERATION; REPEATING FLOW ACCERLERATION OF THE SO-OBTAINED PRODUCT; AND IMMEDIATELY AFTER SAID REPEATED FLWO ACCELERATION ADMIXING WITH SAID PRODUCT A REAGENT CAUSING THE STARCH MODIFICATION TO BE BROKEN OFF.
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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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |