Patent US2494644A successfully refreshed from Google Patents.
US2494644A
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US
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Gas dehydration system
Assignee: DIELECTRIC PRODUCTS Co IN
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Filing: 1945-03-20
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Granted: 1950-01-17
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Expires: 1965-03-20
Abstract
No abstract record available.
Inventors
- 👤 Irving H Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:16
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; B01D53/261; B01D53/02; B01D53/04; B01D2259/00; B01D2259/40; B01D2259/402; B01D53/0454; Y; Y10; Y10S; Y10S55/00; Y10S55/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US870546A
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US1092434A
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US1887589A
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US1872783A
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US2083732A
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US2101555A
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US2075036A
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US2259749A
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US2322603A
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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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |