US2658967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle warning device
Assignee: Individual
•
Filing: 1949-04-23
•
Granted: 1953-11-10
•
Expires: 1969-04-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur L Matschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:56
CPC Classifications
E; E04; E04H; E04H6/00; E04H6/42; E04H6/426; Y; Y10; Y10S; Y10S116/00; Y10S116/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1636245A
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US1830298A
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US1701800A
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US1695712A
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US1876165A
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FR682123A
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US1936828A
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US2259614A
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US2163122A
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US2454896A
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US2508149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |