US2507554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner for coke ovens
Assignee: Beazer East Inc
•
Filing: 1945-08-14
•
Granted: 1950-05-16
•
Expires: 1965-08-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph Van Ackeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:48
CPC Classifications
C; C10; C10B; C10B21/00; C10B21/10; F; F23; F23D; F23D99/00; F23D99/002; F23D99/004; F23D2206/00; F23D2206/0015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1775494A
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US1882553A
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US2019483A
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GB474331A
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US2216983A
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US2387615A
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US2343318A
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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) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |