Patent US2299149A successfully refreshed from Google Patents.
US2299149A
Expired / Lapsed
US
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Method of removing organic sulphur from gases or vapors
Assignee: Consolidated Gas Electric Light and Power Company of Baltimore
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Filing: 1940-02-20
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Granted: 1942-10-20
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Expires: 1960-02-20
Abstract
No abstract record available.
Inventors
- 👤 William A Kemper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:18
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/20; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/485
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 |