US530765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pressure-regulator and stop-valve
Assignee: —
•
Filing: —
•
Granted: 1894-12-11
•
Expires: 1911-12-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:25
CPC Classifications
F; F16; F16K; F16K17/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7731; Y10T137/7781; Y10T137/7793; Y10T137/7831; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86743; Y10T137/86751
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) | 1897-12-10 | 1898-06-11 | 1898-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-12-11 | 1902-06-12 | 1902-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-12-11 | 1906-06-12 | 1906-12-12 | $7700.00 | Window Closed / Lapsed |