US2672330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent stripping apparatus
Assignee: Cuban-American Sugar Co
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Filing: 1950-05-08
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Granted: 1954-03-16
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Expires: 1970-05-08
Abstract
No abstract record available.
Inventors
- 👤 Oscar J Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:02
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; C11B1/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191107536A
Cited
US1480888A
Cited
DE444911C
Cited
US1782862A
Cited
US2007759A
Cited
FR839695A
Cited
US2339561A
Cited
US2558222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |