US2416085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1943-07-19
•
Granted: 1947-02-18
•
Expires: 1963-07-19
Abstract
No abstract record available.
Inventors
- 👤 Adelbert G Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:57
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE61724C
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US251668A
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US860141A
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US922294A
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US969576A
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US1211195A
Cited
US1552710A
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US1555552A
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US1579776A
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US2089848A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |