US3546969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking differential
Assignee: Thornton Products Co
•
Filing: 1969-02-05
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Granted: 1970-12-15
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Expires: 1989-02-05
Abstract
No abstract record available.
Inventors
- 👤 Philip Terry Gibson
- 👤 Sherman Andrew Larimer
- 👤 Henry Elwin Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/27; F16H2048/085; F16H48/38; F16H48/40
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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |