US2737377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-liquid contact apparatus
Assignee: KGI Inc
•
Filing: 1951-10-24
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Granted: 1956-03-06
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Expires: 1971-10-24
Abstract
No abstract record available.
Inventors
- 👤 Huggins Clifford Andrew
- 👤 Griffin C Thrift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:22
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/18; B01D3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US243297A
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US581439A
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US829700A
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US1608416A
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US1773258A
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US2568749A
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FR951153A
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BE497599A
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US2693949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |