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US3374322A
Expired / Lapsed
US
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Dual brake system safety device
Assignee: Weatherhead Co
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Filing: 1966-10-06
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Granted: 1968-03-19
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Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 Paul J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:17
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/38; B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2764176A
Cited
US3228194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |