US2847875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed responsive device for automobles
Assignee: Individual
•
Filing: 1955-09-28
•
Granted: 1958-08-19
•
Expires: 1975-09-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert D Drain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:09
CPC Classifications
B; B60; B60K; B60K26/00; B60K26/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063; Y10T74/20918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US850507A
Cited
US1235423A
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US1385213A
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US1788713A
Cited
US1704505A
Cited
US2124683A
Cited
US2224249A
Cited
US2342751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |