Patent US3500315A successfully refreshed from Google Patents.
US3500315A
Expired / Lapsed
US
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Automotive vehicle signaling system
Assignee: Denso Corp
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Filing: 1967-10-20
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Granted: 1970-03-10
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Expires: 1987-10-20
Abstract
No abstract record available.
Inventors
- 👤 Hisashi Shimada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:27
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/46; B60Q1/34; B60Q1/38; B60Q1/381
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075841A
Cited
US2912675A
Cited
GB816010A
Cited
US3040207A
Cited
US3274441A
Cited
US3329868A
Cited
US3313981A
Cited
US3398399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |