US2840795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driver or passenger operated call for help distress signal
Assignee: Individual
•
Filing: 1957-07-30
•
Granted: 1958-06-24
•
Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 Gee Yun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:29
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/50; B60Q1/52; B60Q11/00; B60R; B60R25/00; B60R25/10; B60R25/1018
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1619982A
Cited
US1716370A
Cited
US2238246A
Cited
US2594196A
Cited
US2652553A
Cited
US2782396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |