Patent US3445086A successfully refreshed from Google Patents.
US3445086A
Expired / Lapsed
US
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Snap acting valve and control mechanism therefor
Assignee: Zyrotron Ind Inc
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Filing: 1966-11-25
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Granted: 1969-05-20
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Expires: 1986-11-25
Abstract
No abstract record available.
Inventors
- 👤 Frederic R Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:31
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/36; F16K17/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1603005A
Cited
US2181900A
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US2285913A
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US2521891A
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US2776105A
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US3075348A
Cited
US3169008A
Cited
US3107894A
Cited
US3266235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |