US2299718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removing coke from coke stills
Assignee: DE FLOREZ ENGINEERING Co Inc
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Filing: 1940-09-07
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Granted: 1942-10-20
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Expires: 1960-09-07
Abstract
No abstract record available.
Inventors
- 👤 Florez Luis De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:04
CPC Classifications
F; F27; F27D; F27D25/00; F27D25/001; C; C10; C10B; C10B33/00; C10B33/006; C10G; C10G9/00; C10G9/14; C10G9/18; C10G9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-10-19 | 1946-04-20 | 1946-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-19 | 1950-04-20 | 1950-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-19 | 1954-04-20 | 1954-10-20 | $7700.00 | Window Closed / Lapsed |