US3425663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve assembly
Assignee: Boeing North American Inc
•
Filing: 1966-06-28
•
Granted: 1969-02-04
•
Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Werner K Priese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:54
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/201; F16K5/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA519462A
Cited
US1791914A
Cited
US2191232A
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US2504863A
Cited
FR1000129A
Cited
US2627443A
Cited
US3107080A
Cited
US3159177A
Cited
US3239191A
Cited
US3231235A
Cited
US3298753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |