US2739305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination flash and beacon light
Assignee: HUGH E HAYES
•
Filing: 1952-02-18
•
Granted: 1956-03-20
•
Expires: 1972-02-18
Abstract
No abstract record available.
Inventors
- 👤 Luther R Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:11
CPC Classifications
B; B60; B60Q; B60Q7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2172925A
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US2174067A
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US2224742A
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US2221178A
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US2408568A
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US2496618A
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US2491094A
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US2589747A
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US2597705A
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US2593784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |