Patent US3449019A successfully refreshed from Google Patents.
US3449019A
Expired / Lapsed
US
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Vehicle braking systems
Assignee: FERGUSON H AUTO RES
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Filing: 1968-07-03
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Granted: 1969-06-10
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Expires: 1988-07-03
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:38
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T8/00; B60T8/32; B60T8/34; B60T8/44; B60T8/447; B60T8/448; B60T8/88; B60T8/92; B60T8/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3401986A
Cited
US3325226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |