Patent US592814A successfully refreshed from Google Patents.
US592814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check-valve for sewers
Assignee: —
•
Filing: —
•
Granted: 1897-11-02
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Expires: 1914-11-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:00
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; B; B01; B01D; B01D2201/00; B01D2201/40; B01D2201/4046
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) | 1900-11-02 | 1901-05-04 | 1901-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1904-11-02 | 1905-05-04 | 1905-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1908-11-02 | 1909-05-04 | 1909-11-03 | $7700.00 | Window Closed / Lapsed |