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US2784849A
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Coke oven doors and door handling machines
Assignee: Individual
•
Filing: 1952-06-23
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Granted: 1957-03-12
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Expires: 1972-06-23
Abstract
No abstract record available.
Inventors
- 👤 Gillott John Melville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:17
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/08; C10B25/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1141132A
Cited
US2123521A
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US2157567A
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US2182494A
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US2299916A
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US2598582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |