US2971748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous mixer
Assignee: Bayer AG
•
Filing: 1958-05-20
•
Granted: 1961-02-14
•
Expires: 1978-05-20
Abstract
No abstract record available.
Inventors
- 👤 Ellegast Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:29
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/405; B01; B01F; B01F27/00; B01F27/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2769622A
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US2736534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |