US2657911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing finely divided solid particles and liquid
Assignee: TROY ENGINE AND MACHINE Co
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Filing: 1949-08-03
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Granted: 1953-11-03
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Expires: 1969-08-03
Abstract
No abstract record available.
Inventors
- 👤 Malcolm B Nicholls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
A; A21; A21C; A21C1/00; A21C1/04; B; B01; B01F; B01F29/00; B01F29/40; B01F29/403; B01F29/4032; B21; B21D; B21D11/00; B21D11/06; B44; B44D; B44D3/00; B44D3/06
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) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |