US531304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1894-12-25
•
Expires: 1911-12-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:38
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K17/00; F16K17/02; F16K17/04; F16K17/0446; F16K17/046; F16K17/048; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7778; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/8593; Y10T137/87265; Y10T137/87555
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) | 1897-12-24 | 1898-06-25 | 1898-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-12-25 | 1902-06-26 | 1902-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-12-25 | 1906-06-26 | 1906-12-26 | $7700.00 | Window Closed / Lapsed |