US2965131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure and linkage therefor
Assignee: AIR MITE DEVICES Inc
•
Filing: 1958-06-20
•
Granted: 1960-12-20
•
Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 John J Oros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:22
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/078; F15; F15B; F15B13/00; F15B13/02; F15B13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/6198; Y10T137/6253; Y10T137/6362; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1958303A
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Cited
US2653580A
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US2700307A
Cited
US2747611A
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FR1105326A
Cited
US2826258A
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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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |