US504838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: —
•
Filing: —
•
Granted: 1893-09-12
•
Expires: 1910-09-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:56
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/20; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87981
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) | 1896-09-11 | 1897-03-13 | 1897-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-09-12 | 1901-03-14 | 1901-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-09-12 | 1905-03-14 | 1905-09-13 | $7700.00 | Window Closed / Lapsed |