Patent US3430642A successfully refreshed from Google Patents.
US3430642A
Expired / Lapsed
US
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Acceleration-responsive valve assemblies
Assignee: The Hymatic Engineering Co Ltd
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Filing: 1965-10-08
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Granted: 1969-03-04
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 John E Mack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:49
CPC Classifications
B; B64; B64D; B64D10/00; B64D13/00; B64D13/02; B64D13/04; B64D17/00; B64D17/78; F; F15; F15B; F15B5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0777
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |