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US2407761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: —
•
Filing: —
•
Granted: 1946-09-17
•
Expires: 1963-09-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:45
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F16K31/402; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2365
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-09-16 | 1950-03-18 | 1950-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-09-16 | 1954-03-18 | 1954-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-09-16 | 1958-03-18 | 1958-09-17 | $7700.00 | Window Closed / Lapsed |