Patent US3489172A successfully refreshed from Google Patents.
US3489172A
Expired / Lapsed
US
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Linear pressure bleed regulator
Assignee: Individual
•
Filing: 1967-05-22
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Granted: 1970-01-13
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Expires: 1987-05-22
Abstract
No abstract record available.
Inventors
- 👤 Henry B Whitmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:39
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/0235; F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/042; F16K15/044; F16K2200/00; F16K2200/30; F16K2200/302; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7779; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7869; Y10T137/7904; Y10T137/7905; Y10T137/7922; Y10T137/7927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2404924A
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US2459326A
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US2541282A
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US2570937A
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US2809659A
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FR1152284A
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US2955843A
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US3106226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |