Patent US3478760A successfully refreshed from Google Patents.
US3478760A
Expired / Lapsed
US
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Hermetically sealed valve means
Assignee: ATK Launch Systems LLC
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Filing: 1966-05-17
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Granted: 1969-11-18
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Expires: 1986-05-17
Abstract
No abstract record available.
Inventors
- 👤 William S Hosek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:27
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/40; F16K13/00; F16K13/04; F16K13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/1692; Y10T137/1714; Y10T137/8593; Y10T137/877; Y10T137/87708
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |