US2612358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping-type flotation apparatus
Assignee: Mining Process and Patent Co
•
Filing: 1947-06-14
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Granted: 1952-09-30
•
Expires: 1967-06-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Daman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:48
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24; B03D1/02; B03D1/028; B03D1/1406; B03D1/1443; B03D1/1462; B03D1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1285061A
Cited
US1761136A
Cited
US1921220A
Cited
US2054249A
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US2238139A
Cited
US2393976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |