US2772080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-liquid contact apparatus
Assignee: KGI Inc
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Filing: 1954-03-08
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Granted: 1956-11-27
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Expires: 1974-03-08
Abstract
No abstract record available.
Inventors
- 👤 Clifford A Huggins
- 👤 Griffin C Thrift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:55
CPC Classifications
F; F16; F16K; F16K15/00; B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |