Patent US1214608A successfully refreshed from Google Patents.
US2814029A
Expired / Lapsed
US
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Rotary beam warning light
Assignee: SIRENO CO Inc
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Filing: 1954-10-29
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Granted: 1957-11-19
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Expires: 1974-10-29
Abstract
No abstract record available.
Inventors
- 👤 John S Mcrea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:59
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US841845A
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US1417457A
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US1903462A
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US2248760A
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US2469581A
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US2578239A
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US2642522A
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US2538854A
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US2748371A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |