US1670593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing machine and process
Assignee: Barrett Co Inc
•
Filing: 1923-12-03
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Granted: 1928-05-22
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Expires: 1943-12-03
Abstract
No abstract record available.
Inventors
- 👤 Stuart P Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:48
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/27; B01F27/271; B01F27/2711; 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) | 1931-05-22 | 1931-11-21 | 1932-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-22 | 1935-11-21 | 1936-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-22 | 1939-11-21 | 1940-05-22 | $7700.00 | Window Closed / Lapsed |