Patent US2830784A successfully refreshed from Google Patents.
US2830784A
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US
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General purpose flow valve with alternative fluid pressure or manual control
Assignee: Individual
•
Filing: 1954-09-30
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Granted: 1958-04-15
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Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Placette Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:07
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/363
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US620287A
Cited
US624890A
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US1005117A
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US2035747A
Cited
US2333100A
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US2368212A
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US2587212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |