US3521654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic device
Assignee: Vickers Inc
•
Filing: 1968-01-11
•
Granted: 1970-07-28
•
Expires: 1988-01-11
Abstract
No abstract record available.
Inventors
- 👤 Knut Brautaset
- 👤 Arthur H Delmege
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:16
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; F15C1/04; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2213; Y10T137/2218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3152612A
Cited
US2984218A
Cited
US3239150A
Cited
US3171421A
Cited
US3153934A
Cited
US3285262A
Cited
US3187763A
Cited
US3420255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |