US2469719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure reducing valve
Assignee: Individual
•
Filing: 1947-08-27
•
Granted: 1949-05-10
•
Expires: 1967-08-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas B Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:17
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; F; F16; F16K; F16K1/00; F16K1/32; F16K1/52; F16K1/526; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/88062
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |