US336307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed-water regulator
Assignee: —
•
Filing: —
•
Granted: 1886-02-16
•
Expires: 1903-02-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:46
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/042; F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7407; Y10T137/7413; Y10T137/742
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) | 1889-02-15 | 1889-08-17 | 1890-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1893-02-15 | 1893-08-17 | 1894-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1897-02-15 | 1897-08-17 | 1898-02-16 | $7700.00 | Window Closed / Lapsed |