Patent US2641335A successfully refreshed from Google Patents.
US2641335A
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US
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Gas-solid separator
Assignee: Union Oil Company of California
•
Filing: 1946-01-12
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Granted: 1953-06-09
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Expires: 1966-01-12
Abstract
No abstract record available.
Inventors
- 👤 Clyde H O Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:06
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/02; B07; B07B; B07B7/00; B07B7/01; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003
Claims Analysis
Total Claims: 0
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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) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |