US3477549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual automotive brake system
Assignee: Ford Motor Co
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Filing: 1968-06-04
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Granted: 1969-11-11
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Expires: 1988-06-04
Abstract
No abstract record available.
Inventors
- 👤 David W Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:06
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/24; B60T17/00; B60T17/18; B60T17/22; B60T17/226; F; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/18; F16D2121/00; F16D2121/02; F16D2123/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |