US2586906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: BATES HARCUM J
•
Filing: 1947-10-01
•
Granted: 1952-02-26
•
Expires: 1967-10-01
Abstract
No abstract record available.
Inventors
- 👤 Donald E Beckett
- 👤 William N Beckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; Y; Y10; Y10S; Y10S101/00; Y10S101/30; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US318247A
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US1464303A
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DE589937C
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US711121A
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US1092718A
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US2145977A
Cited
US2159610A
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US2180817A
Cited
US2251747A
Cited
US2251750A
Cited
US2219896A
Cited
US2374593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |