US2764962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum selector operated safety signal device for automotive vehicles
Assignee: Individual
•
Filing: 1954-01-15
•
Granted: 1956-10-02
•
Expires: 1974-01-15
Abstract
No abstract record available.
Inventors
- 👤 Robert C Warren
- 👤 Wesley J Barrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:47
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23719E
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US2733696A
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US1156453A
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US1887515A
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US2035775A
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US2046389A
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US2250133A
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US2250587A
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US2724375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |