US2344818A
Expired / Lapsed
US
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Valve
Assignee: BROWETT LINDLEY 1931 Ltd J
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Filing: 1942-05-25
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Granted: 1944-03-21
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Expires: 1962-05-25
Abstract
No abstract record available.
Inventors
- 👤 Hutton James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:23
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/08; F16K15/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7859; Y10T137/786; Y10T137/7861; Y10T137/7862; Y10T137/7863; Y10T137/7864; Y10T137/7879; Y10T137/788; Y10T137/7881
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) | 1947-03-21 | 1947-09-20 | 1948-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-21 | 1951-09-20 | 1952-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-21 | 1955-09-20 | 1956-03-21 | $7700.00 | Window Closed / Lapsed |