US3393581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inertia locking differential and disc brake construction
Assignee: Ford Motor Co
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Filing: 1967-04-21
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Granted: 1968-07-23
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Expires: 1987-04-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Stockton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:51
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/12; F16H48/14; F16H2200/00; F16H2200/20; F16H2200/203; F16H2200/2071; F16H48/30; F16H48/32
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) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |