US520349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump-valve
Assignee: —
•
Filing: —
•
Granted: 1894-05-22
•
Expires: 1911-05-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:16
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/02; F; F16; F16K; F16K15/00; F16K15/02; F16K15/025; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7559; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7841
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) | 1897-05-21 | 1897-11-20 | 1898-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-05-22 | 1901-11-21 | 1902-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-05-22 | 1905-11-21 | 1906-05-23 | $7700.00 | Window Closed / Lapsed |