Patent US2994516A successfully refreshed from Google Patents.
US2994516A
Expired / Lapsed
US
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Fluid agitating device
Assignee: Individual
•
Filing: 1957-06-27
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Granted: 1961-08-01
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Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Pelkowski Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:08
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1041908A
Cited
US1276383A
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US1268601A
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US1344675A
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US1497957A
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US1790115A
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US1880021A
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US1941244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |