US2669418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1948-07-28
•
Granted: 1954-02-16
•
Expires: 1968-07-28
Abstract
No abstract record available.
Inventors
- 👤 Brumbaugh Issac Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:33
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/06; F16K27/062; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8275
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US454234A
Cited
US495739A
Cited
US1816012A
Cited
US871956A
Cited
US930017A
Cited
US951378A
Cited
US1161940A
Cited
US1183012A
Cited
US1103137A
Cited
US1261469A
Cited
US1288486A
Cited
US1227574A
Cited
US1357608A
Cited
US1367605A
Cited
US1343530A
Cited
US1513028A
Cited
US1644551A
Cited
US1855586A
Cited
US1964045A
Cited
FR759612A
Cited
US2011063A
Cited
US2309666A
Cited
US2499739A
Cited
US2446496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |