US2439282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float valve
Assignee: Individual
•
Filing: 1944-04-10
•
Granted: 1948-04-06
•
Expires: 1964-04-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Beckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:47
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/24; F16K31/26; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7446; Y10T137/7449; Y10T137/7465; Y10T137/7468
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US525870A
Cited
US909409A
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US1112533A
Cited
GB191419995A
Cited
US1542321A
Cited
US1804093A
Cited
US1887235A
Cited
US2059359A
Cited
US2263142A
Cited
US2292407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |