Patent US2648349A successfully refreshed from Google Patents.
US2648349A
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US
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Valve structure
Assignee: Individual
•
Filing: 1947-12-10
•
Granted: 1953-08-11
•
Expires: 1967-12-10
Abstract
No abstract record available.
Inventors
- 👤 James W Mcgarry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:38
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; E03B9/14; Y; Y10; Y10T; Y10T137/00; Y10T137/5327; Y10T137/5333; Y10T137/5368; Y10T137/5438; Y10T137/5444; Y10T137/5497; Y10T137/5503; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686; Y10T137/87169; Y10T137/87193
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US420889A
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US1584407A
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US1875145A
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Cited
US2064343A
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US2230644A
Cited
US2217712A
Cited
US2293867A
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US2234635A
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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) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |