US2645347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortex separator for pulp
Assignee: Black Clawson Co
•
Filing: 1950-05-20
•
Granted: 1953-07-14
•
Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Baxter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:19
CPC Classifications
B; B65; B65B; B65B5/00; B65B5/06; B04; B04C; B04C3/00; B04C5/00; B04C5/02; B04C5/06; B04C5/14; B04C5/15; B04C5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2346005A
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US2377721A
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US2512253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |