US2937362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety flasher unit for tractors and the like
Assignee: DESIGN ENGINEERS
•
Filing: 1957-02-11
•
Granted: 1960-05-17
•
Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 Maurice P Hartnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:33
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36; G08B5/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB267419A
Cited
US1927319A
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US1834682A
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FR757609A
Cited
US2127760A
Cited
US2260253A
Cited
US2512167A
Cited
US2496601A
Cited
US2704839A
Cited
US2738492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |