US2984258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1959-07-20
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Granted: 1961-05-16
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Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Harry E Clary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:51
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0704; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87048; Y10T137/87169; Y10T137/87233; Y10T137/87241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2802453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |