US2459375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microfractionation still with capillary tube offtakes for condensate
Assignee: California Institute Research Foundation
•
Filing: 1944-09-15
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Granted: 1949-01-18
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Expires: 1964-09-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Clark Webster Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:18
CPC Classifications
B; B01; B01D; B01D5/00; B01D5/0033; B01D5/0036; B01D3/00; B01D3/14; B01D5/0057; B01D5/006; B01D5/0063; B01D5/0078; B01D5/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317262A
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US961254A
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US1451603A
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US1893340A
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US2129502A
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US2192140A
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US2317101A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |