US3416549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric fluid valve
Assignee: Boeing Co
•
Filing: 1965-10-23
•
Granted: 1968-12-17
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Harold K Chaney
- 👤 Halvor T Strandrud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:57
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F15; F15B; F15B21/00; F15B21/06; F15B21/065; Y; Y10; Y10S; Y10S60/00; Y10S60/911; Y10T; Y10T137/00; Y10T137/206; Y10T137/2082; Y10T137/218; Y10T137/2191
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3273594A
Cited
US2763125A
Cited
US2743492A
Cited
US2820471A
Cited
US3010471A
Cited
US3266514A
Cited
US3334641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |