Patent US3263701A successfully refreshed from Google Patents.
US3263701A
Expired / Lapsed
US
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Valve structure
Assignee: ACF Industries Inc
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Filing: 1965-01-11
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Granted: 1966-08-02
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Expires: 1985-01-11
Abstract
No abstract record available.
Inventors
- 👤 Johnson Dolores
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:11
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/12; F02M37/046; Y; Y10; Y10S; Y10S261/00; Y10S261/68; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |