Patent US3385576A successfully refreshed from Google Patents.
US3385576A
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Apparatus for dispersing a gas in a liquid
Assignee: Wyeth Holdings LLC
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Filing: 1967-05-02
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Granted: 1968-05-28
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Expires: 1987-05-02
Abstract
No abstract record available.
Inventors
- 👤 John P Wikswo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:50
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; C; C01; C01G; C01G23/00; C01G23/02; C01G23/022; C01G23/024; B01F23/231; B01F23/23105; B01F23/2311; B01F23/23112; B01F23/231122; B01F23/2336; B01F23/23362; B01F23/2366; B01F23/2368; B01F27/00; B01F27/05; B01F27/11; B01F27/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1526596A
Cited
US2154150A
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US2243309A
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US2448590A
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US2678912A
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US2750328A
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US2801083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |