US2580731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve for automobile lifts
Assignee: Individual
•
Filing: 1947-03-08
•
Granted: 1952-01-01
•
Expires: 1967-03-08
Abstract
No abstract record available.
Inventors
- 👤 John D Cochin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:00
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; B; B66; B66F; B66F7/00; B66F7/10; B66F7/16; B66F7/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87064; Y10T137/87153; Y10T137/87161; Y10T137/877; Y10T137/87708; Y10T137/87748; Y10T137/87756
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE19239E
Cited
US2329742A
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US978579A
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US1751277A
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US1956775A
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US2116806A
Cited
US2213790A
Cited
US2324690A
Cited
US2366883A
Cited
US2462544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |