Patent US201468A successfully refreshed from Google Patents.
US201468A
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Improvement in pump-valves
Assignee: —
•
Filing: —
•
Granted: 1878-03-19
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Expires: 1895-03-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:58
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/065; F16K15/03; F16K15/067; F16K47/00; F16K47/01; F16K47/011; F16K47/0111; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7904; Y10T137/7905
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) | 1881-03-18 | 1881-09-17 | 1882-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-03-18 | 1885-09-17 | 1886-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-03-18 | 1889-09-17 | 1890-03-19 | $7700.00 | Window Closed / Lapsed |