US2947485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc refiner
Assignee: Bauer Brothers Co
•
Filing: 1954-02-05
•
Granted: 1960-08-02
•
Expires: 1974-02-05
Abstract
No abstract record available.
Inventors
- 👤 Maurice D Woodruff
- 👤 Clinton K Textor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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DE166651C
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US901770A
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US1795603A
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US1800389A
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US1961808A
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US2156320A
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AT175765B
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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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |