US3434804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus utilizing a webbed stirrer for continuous mixing
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1965-08-06
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Granted: 1969-03-25
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Expires: 1985-08-06
Abstract
No abstract record available.
Inventors
- 👤 Richard Babington Winn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:16
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/1145; B01F27/112; B01F27/1125; B01F27/11251
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2445741A
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US3003986A
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US3296168A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |