US2491130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushing tank and valve
Assignee: Individual
•
Filing: 1944-12-28
•
Granted: 1949-12-13
•
Expires: 1964-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jesse C Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:21
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/24; F16K31/26; E; E03; E03D; E03D1/00; E03D1/02; E03D1/06; E03D1/12; E03D1/125; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2842; Y10T137/2863; Y10T137/7287; Y10T137/7358; Y10T137/7361; Y10T137/7368; Y10T137/7371; Y10T137/7374
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE460847C
Cited
US2213753A
Cited
US904228A
Cited
US1625311A
Cited
US1839424A
Cited
US1984394A
Cited
US2230285A
Cited
US2228552A
Cited
US2240102A
Cited
US2412691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |