US2600965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic separator
Assignee: Individual
•
Filing: 1948-11-17
•
Granted: 1952-06-17
•
Expires: 1968-11-17
Abstract
No abstract record available.
Inventors
- 👤 Karl J Brandau
- 👤 Robert L Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:03
CPC Classifications
A; A24; A24B; A24B5/00; A24B5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB295899A
Cited
US1250553A
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US1478616A
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FR531784A
Cited
US1831208A
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US1731142A
Cited
US1861248A
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US2009729A
Cited
US2173088A
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US2130880A
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US2257552A
Cited
US2299623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |