Patent US3143768A successfully refreshed from Google Patents.
US3143768A
Expired / Lapsed
US
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Flighted temperature controlled mixer shaft
Assignee: Baker Perkins Inc
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Filing: 1961-09-20
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Granted: 1964-08-11
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Expires: 1981-09-20
Abstract
No abstract record available.
Inventors
- 👤 Clarence K Scherping
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:46
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/78; B29C48/80; B29C48/84; B29C48/85; B29C48/36; B29C48/50; B29C48/505; B29C48/51; B29C48/515; B29C48/845; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A TEMPERATURE CONTROLLED MIXER SHAFT COMPRISING; AN ELONGATE, HOLLOW SHAFT HAVING RELATIVELY NARROW, INTERRUPTED INTEGRAL FLIGHTS THEREON; AT LEAST ONE FLIGHT HAVING AT LEAST ONE RADIAL OPENING EXTENDING FROM ITS RADIALLY OUTER END TO THE OPEN INTERIOR OF SAID SHAFT; AND MEANS INCLUDING WELD MATERIAL CLOSING THE OPENING AT THE OUTER PERIPHERY OF SAID FLIGHT.
Claim 2
Dependent Claim
55 words
A TEMPERATURE CONTROLLED MIXER SHAFT COMPRISING; AN ELONGATE, HOLLOW SHAFT HAVING RELATIVELY NARROW, INTERRUPTED INTEGRAL FLIGHTS THEREON; AT LEAST ONE FLIGHT HAVING AT LEAST ONE RADIAL OPENING EXTENDING FROM ITS RADIALLY OUTER END TO THE OPEN INTERIOR OF SAID SHAFT; AND MEANS INCLUDING WELD MATERIAL CLOSING THE OPENING AT THE OUTER PERIPHERY OF SAID FLIGHT.
References Cited (Backward Citations)
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US2733898A
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |