US1779986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control device for the operation of visual and audible signals
Assignee: ELECTRIC ALARM CO Inc
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Filing: 1926-11-24
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Granted: 1930-10-28
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Expires: 1946-11-24
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:27
CPC Classifications
G; G08; G08B; G08B7/00; G08B7/06; Y; Y10; Y10S; Y10S200/00; Y10S200/08; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-10-27 | 1934-04-28 | 1934-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-27 | 1938-04-28 | 1938-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-27 | 1942-04-28 | 1942-10-28 | $7700.00 | Window Closed / Lapsed |