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US1798517A
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Coke-oven smoke-discharging means
Assignee: Beazer East Inc
•
Filing: 1925-11-30
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Granted: 1931-03-31
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Expires: 1945-11-30
Abstract
No abstract record available.
Inventors
- 👤 Becker Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:08
CPC Classifications
C; C10; C10B; C10B31/00; C10B31/02; C10B31/04; Y; Y10; Y10S; Y10S70/00; Y10S70/52
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) | 1934-03-30 | 1934-09-29 | 1935-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-30 | 1938-09-29 | 1939-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-30 | 1942-09-29 | 1943-03-31 | $7700.00 | Window Closed / Lapsed |