US2641452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic type of mixer
Assignee: Individual
•
Filing: 1950-07-19
•
Granted: 1953-06-09
•
Expires: 1970-07-19
Abstract
No abstract record available.
Inventors
- 👤 Wagner Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:18
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/45; B01F33/452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1456147A
Cited
US1734975A
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US1992938A
Cited
US2170178A
Cited
US2246165A
Cited
US2350534A
Cited
US2513082A
Cited
US2549121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |