Patent US2690329A successfully refreshed from Google Patents.
US2690329A
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Device for homogenizing liquids
Assignee: Alpura AG
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Filing: 1951-10-24
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Granted: 1954-09-28
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Expires: 1971-10-24
Abstract
No abstract record available.
Inventors
- 👤 Gressly Kuno Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:17
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/40; B01F25/44; B01F25/441; B01F25/4412; B01F25/44121; A; A01; A01J; A01J11/00; A01J11/16; A01J13/00; B01F2215/00; B01F2215/04; B01F2215/0413; B01F2215/0436; B01F2215/045; B01F2215/0468
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1641485A
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US2042462A
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US2132854A
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US2203130A
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US2426238A
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US2471667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |