US2630291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve apparatus
Assignee: Mueller Brass Co
•
Filing: 1949-02-04
•
Granted: 1953-03-03
•
Expires: 1969-02-04
Abstract
No abstract record available.
Inventors
- 👤 Charles E Gifford
- 👤 Cecil B Howse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:01
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US147240A
Cited
GB485051A
Cited
US2372227A
Cited
US2342276A
Cited
US2360733A
Cited
US2360839A
Cited
US2414451A
Cited
US2459668A
Cited
US2524142A
Cited
US2445802A
Cited
US2470700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |