US2391858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Streamcurrent apparatus for mixing materials
Assignee: Individual
•
Filing: 1943-07-31
•
Granted: 1946-01-01
•
Expires: 1963-07-31
Abstract
No abstract record available.
Inventors
- 👤 George A Auer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/27; B01F27/271; B01F27/2711; B01F33/00; B01F33/80; B01F33/81; B01F33/811; B01F33/82; B01F33/821; B01F25/00; B01F2025/91; B01F2025/912; B01F27/05; B01F27/11; B01F27/19; B01F27/191; B01F27/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-12-31 | 1949-07-02 | 1950-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-31 | 1953-07-02 | 1954-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-31 | 1957-07-02 | 1958-01-01 | $7700.00 | Window Closed / Lapsed |