US2581043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antisiphon silencer for ball cocks
Assignee: Individual
•
Filing: 1945-05-08
•
Granted: 1952-01-01
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Jesse C Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:53
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/108; F16K47/00; F16K47/02; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7446; Y10T137/7449
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US357908A
Cited
GB191415963A
Cited
DE617601C
Cited
US2148968A
Cited
FR788265A
Cited
US2087503A
Cited
US2111614A
Cited
US2209473A
Cited
US2329337A
Cited
US2382500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |