Patent US2670939A successfully refreshed from Google Patents.
US2670939A
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US
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Mixing paddle
Assignee: JAMES P MCNALLY
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Filing: 1952-04-04
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Granted: 1954-03-02
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Expires: 1972-04-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Harp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:54
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/112; B01F27/1125; B01F33/00; B01F33/50; B01F33/501; B01F33/5011; B01F35/00; B01F35/30; B01F35/32; B01F35/32005; B01F35/3202
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) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |