Patent US2784729A successfully refreshed from Google Patents.
US2784729A
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Valve device for independent pressure control of plural outlet bores
Assignee: Individual
•
Filing: 1953-02-24
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Granted: 1957-03-12
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Expires: 1973-02-24
Abstract
No abstract record available.
Inventors
- 👤 Schoffel Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:35
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; B; B02; B02C; B02C4/00; B02C4/28; B02C4/32; B02C4/34; F15B2211/00; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50536; F15B2211/52; F15B2211/521; F15B2211/523; F15B2211/55; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7053; F15B2211/71; F15B2211/76; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2612; Y10T137/2615; Y10T137/8593; Y10T137/877; Y10T137/87877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051434A
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US2312726A
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US2286620A
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US2636509A
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US2554659A
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US2545921A
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US2652859A
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US2659206A
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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) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |