Patent US2952448A successfully refreshed from Google Patents.
US2952448A
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US
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Degasifying, blending, milling and homogenizing machinery
Assignee: GRIFFIN CORNELL Co
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Filing: 1957-05-20
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Granted: 1960-09-13
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Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Cornell Mead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:51
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/27; B01F27/271; B01F27/2712; B01F27/2714; B01F25/00; B01F2025/91; B01F2025/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |