US2719281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal light for marine aviation and vehicular use
Assignee: Individual
•
Filing: 1952-04-11
•
Granted: 1955-09-27
•
Expires: 1972-04-11
Abstract
No abstract record available.
Inventors
- 👤 Grant V W Roth
- 👤 Lester V Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:34
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548958A
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US1905267A
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US2221483A
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US2332383A
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US2345382A
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US2409046A
Cited
US2442569A
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US2460585A
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US2510892A
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US2578239A
Cited
US2607838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |