US2802481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-siphoning valve
Assignee: Individual
•
Filing: 1954-12-16
•
Granted: 1957-08-13
•
Expires: 1974-12-16
Abstract
No abstract record available.
Inventors
- 👤 Leroy B Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:50
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/04; F16K47/06; E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/108; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7446; Y10T137/794; Y10T137/8085
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US142090A
Cited
GB191119986A
Cited
US1081563A
Cited
US1258114A
Cited
US1235221A
Cited
US1782758A
Cited
US1949106A
Cited
US1898816A
Cited
US2237554A
Cited
US2290145A
Cited
US2306508A
Cited
US2591174A
Cited
US2604113A
Cited
US2635622A
Cited
US2578568A
Cited
US2595602A
Cited
US2730117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |