Patent US2410429A successfully refreshed from Google Patents.
US2410429A
Expired / Lapsed
US
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Agitation and aeration apparatus
Assignee: Mining Process and Patent Co
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Filing: 1944-03-06
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Granted: 1946-11-05
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Expires: 1964-03-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Daman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:45
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/16; B03D1/1406; B03D1/1443; B03D1/1456; B03D1/1475; B03D1/20; B03D1/24; B03D1/26
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) | 1949-11-04 | 1950-05-06 | 1950-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-04 | 1954-05-06 | 1954-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-04 | 1958-05-06 | 1958-11-05 | $7700.00 | Window Closed / Lapsed |