US2866679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of sulfur from gas streams
Assignee: Houdry Process Corp
•
Filing: 1955-02-10
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Granted: 1958-12-30
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Expires: 1975-02-10
Abstract
No abstract record available.
Inventors
- 👤 Archibald G W Lamont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:25
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/523; C; C10; C10K; C10K1/00; C10K1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1360734A
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US1875920A
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US2137602A
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US2106734A
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US2146353A
Cited
GB466067A
Cited
US2477314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |