US125371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in valves for ice-lxiachines
Assignee: —
•
Filing: —
•
Granted: 1872-04-02
•
Expires: 1889-04-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/06; F16K21/10; Y; Y10; Y10S; Y10S137/00; Y10S137/906; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791; Y10T137/7911
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1875-04-02 | 1875-10-02 | 1876-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-04-02 | 1879-10-02 | 1880-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-04-02 | 1883-10-02 | 1884-04-02 | $7700.00 | Window Closed / Lapsed |