US1574557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering apparatus
Assignee: CYCLE Co
•
Filing: 1920-01-26
•
Granted: 1926-02-23
•
Expires: 1940-01-26
Abstract
No abstract record available.
Inventors
- 👤 Harrison S Coe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:33
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D24/00; B01D24/02; B01D24/10; B01D24/12; B01D24/46; B01D24/4605; B01D24/461; B01D24/48; B01D24/4869
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) | 1929-02-22 | 1929-08-24 | 1930-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-22 | 1933-08-24 | 1934-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-22 | 1937-08-24 | 1938-02-23 | $7700.00 | Window Closed / Lapsed |