US3540282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for alerting a motorist to the danger of iced roads
Assignee: Individual
•
Filing: 1967-05-15
•
Granted: 1970-11-17
•
Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Kohler
- 👤 Reinhard Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:34
CPC Classifications
G; G01; G01W; G01W1/00; E; E01; E01F; E01F9/00; E01F9/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1013937A
Cited
US2012933A
Cited
US2102975A
Cited
GB478140A
Cited
US2710274A
Cited
US2991698A
Cited
US3046473A
Cited
US3343467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |