Patent US3128084A successfully refreshed from Google Patents.
US3128084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stirrer
Assignee: Individual
•
Filing: 1961-11-15
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Granted: 1964-04-07
•
Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Wilbur W Castor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:18
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/116
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A STIRRER COMPRISING A ROTARY SHAFT, A HUB FIXED ON THE SHAFT, AND A CIRCUMFERENTIAL FLANGE FIXED TO THE HUB WITH PASSAGES AND PORTS FORMED THERETHROUGH ON AXES INCLINED WITH RESPECT TO THE SHAFT AXIS AND RADIAL THERETO, THE PASSAGE AND PORT AXES BEING AT AN ANGLE WITH RESPECT TO ONE ANOTHER SUCH THAT THE INNER ENDS OF THE PASSAGES
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |