US2395098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary filter and final scraper therefor
Assignee: Morton Salt Co
•
Filing: 1942-10-14
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Granted: 1946-02-19
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Expires: 1962-10-14
Abstract
No abstract record available.
Inventors
- 👤 Howard C Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:07
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/073; B01D33/44; B01D33/46; B01D33/463; B01D33/466; B01D33/58; B01D33/60; B01D2201/00; B01D2201/28; B01D2201/282
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) | 1949-02-18 | 1949-08-20 | 1950-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-18 | 1953-08-20 | 1954-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-18 | 1957-08-20 | 1958-02-19 | $7700.00 | Window Closed / Lapsed |