US1572299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal separator
Assignee: Individual
•
Filing: 1923-06-18
•
Granted: 1926-02-09
•
Expires: 1943-06-18
Abstract
No abstract record available.
Inventors
- 👤 Fred W Mcentire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/20; B04B11/00; B04B11/08; B04B11/082; B04B2001/2083
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) | 1929-02-08 | 1929-08-10 | 1930-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-08 | 1933-08-10 | 1934-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-08 | 1937-08-10 | 1938-02-09 | $7700.00 | Window Closed / Lapsed |