Patent US2612264A successfully refreshed from Google Patents.
US2612264A
Expired / Lapsed
US
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Coke and like screening machine
Assignee: Wests Gas Improvement Co Ltd
•
Filing: 1949-04-19
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Granted: 1952-09-30
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Expires: 1969-04-19
Abstract
No abstract record available.
Inventors
- 👤 West Frederick Joseph
- 👤 West Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:24
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/12; B07B1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323145A
Cited
US1696554A
Cited
US468197A
Cited
US551772A
Cited
US183660A
Cited
US32017A
Cited
US475568A
Cited
US663212A
Cited
US1039206A
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US1237315A
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US1555704A
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US1610716A
Cited
GB307852A
Cited
US1906331A
Cited
US2231066A
Cited
US2238454A
Cited
US2231435A
Cited
US2276333A
Cited
US2406842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |