Patent US2970467A successfully refreshed from Google Patents.
US2970467A
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US
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Valve assembly and calibration
Assignee: Vickers Inc
•
Filing: 1954-11-01
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Granted: 1961-02-07
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Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond B Pettibone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:21
CPC Classifications
F; F15; F15B; F15B19/00; F15B19/002; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/042; F16K15/044; F16K2200/00; F16K2200/30; F16K2200/301; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7906; Y10T137/7922; Y10T137/7927; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49764; Y10T29/49771; Y10T29/49776; Y10T29/49826; Y10T29/49945
Claims Analysis
Total Claims: 0
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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) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |