Patent US2406065A successfully refreshed from Google Patents.
US2406065A
Expired / Lapsed
US
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Continuous disk filter
Assignee: Standard Oil Co
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Filing: 1942-01-31
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Granted: 1946-08-20
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Expires: 1962-01-31
Abstract
No abstract record available.
Inventors
- 👤 John T Dickinson
- 👤 Arthur R Moorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:06
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/02; C10G73/025; B; B01; B01D; B01D33/00; B01D33/15; B01D33/21; B01D33/44; B01D33/46; B01D33/463; B01D33/466; B01D33/48; B01D33/58; B01D33/60; B01D33/80; B01D33/804; B01D33/807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-08-19 | 1950-02-18 | 1950-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-08-19 | 1954-02-18 | 1954-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-08-19 | 1958-02-18 | 1958-08-20 | $7700.00 | Window Closed / Lapsed |