US3624635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distress signal
Assignee: Individual
•
Filing: 1968-08-19
•
Granted: 1971-11-30
•
Expires: 1988-08-19
Abstract
Abstract A distress signal including electrically operated audible and visual signals for aid, which is adapted to be mounted on the roof or other prominent portion of a dwelling and be operated in an emergency by occupant-manipulated switches appropriately placed within the dwelling.
Inventors
- 👤 Raymond L Less
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:43
CPC Classifications
G; G08; G08B; G08B7/00; G08B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1231298A
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US1958028A
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US2317525A
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US2275539A
Cited
US2632154A
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US2942249A
Cited
US3176268A
Cited
US3142833A
Cited
US3457383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |