Patent US2469197A successfully refreshed from Google Patents.
US2469197A
Expired / Lapsed
US
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Separating apparatus
Assignee: Individual
•
Filing: 1945-12-29
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Granted: 1949-05-03
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Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:10
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D21/00; B01D21/10; B01D21/12; B01D21/18; B01D21/183; B01D21/24; B01D21/2433; B01D21/2444; B01D21/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |