US3434493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow-sensitive shutoff valve
Assignee: Ltv Electrosystems Inc
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Filing: 1967-09-18
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Granted: 1969-03-25
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Expires: 1987-09-18
Abstract
No abstract record available.
Inventors
- 👤 Bobby Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:44
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/32; F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/32; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7727; Y10T137/7781; Y10T137/7784; Y10T137/7785; Y10T137/7792
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |