US2989067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination air shut-off and pressure control valve
Assignee: Bendix Corp
•
Filing: 1957-02-11
•
Granted: 1961-06-20
•
Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 Abe J Perle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:28
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/363; Y; Y10; Y10T; Y10T137/00; Y10T137/3367; Y10T137/7722; Y10T137/7781; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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DE71256C
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US334326A
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US971982A
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FR486973A
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US1660842A
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US2085893A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |