US2985201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for the degasification and/or dehydration of masses of comminuted particles such as powders or dusts
Assignee: COAHOMA CHEMICAL Co Inc
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Filing: 1958-05-27
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Granted: 1961-05-23
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Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 Warren A Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:37
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/12; F26B17/128; B; B01; B01J; B01J3/00; B01J3/006; F26B17/14; F26B17/1433; F26B17/1466; F26B17/1483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US359951A
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US1151970A
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US2073432A
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US2142990A
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US2258631A
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US2381454A
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US2488395A
Cited
US2898954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |