Patent US433019A successfully refreshed from Google Patents.
US433019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump-cylinder and valve mechanism therefor
Assignee: —
•
Filing: —
•
Granted: 1890-07-29
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Expires: 1907-07-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:17
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/792
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) | 1893-07-28 | 1894-01-27 | 1894-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-07-28 | 1898-01-27 | 1898-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-07-29 | 1902-01-28 | 1902-07-30 | $7700.00 | Window Closed / Lapsed |