US2663309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum breaker
Assignee: Sloan Valve Co
•
Filing: 1949-12-16
•
Granted: 1953-12-22
•
Expires: 1969-12-16
Abstract
No abstract record available.
Inventors
- 👤 Jacques J Filliung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:44
CPC Classifications
B; B63; B63H; B63H1/00; B63H1/02; B63H1/04; E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/102; E03C1/108; F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/145; F16K15/1402; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7843; Y10T137/7879; Y10T137/7888; Y10T137/7889
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US384306A
Cited
US1800066A
Cited
US2098886A
Cited
US2172110A
Cited
US2270737A
Cited
US2382427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |