US2488747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch separation
Assignee: De Laval Separator Co
•
Filing: 1946-08-10
•
Granted: 1949-11-22
•
Expires: 1966-08-10
Abstract
No abstract record available.
Inventors
- 👤 George J Strezynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:07
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/04; C08B30/042; C08B30/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US994497A
Cited
US1960985A
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US2013668A
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US1923455A
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US2325250A
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US2039605A
Cited
US2251448A
Cited
US2323077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |