US2907555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Draiswerke GmbH
•
Filing: 1955-04-06
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Granted: 1959-10-06
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Expires: 1975-04-06
Abstract
No abstract record available.
Inventors
- 👤 Engels Kaspar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:48
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/60; B01F27/62; B01F27/05; B01F27/11; B01F27/112; B01F27/23; B01F27/231; B01F27/61; B29; B29K; B29K2503/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US854159A
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US1745291A
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US1948871A
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US2306698A
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US2471769A
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US2626856A
Cited
US2696022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |