US2865228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive drive differential for motor vehicles
Assignee: Individual
•
Filing: 1954-05-03
•
Granted: 1958-12-23
•
Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Albert A Weismann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:54
CPC Classifications
B; B60; B60B; B60B11/00; B60B11/02; F; F16; F16D; F16D41/00; F16D41/06; F16D41/08; F16D41/10; F16D41/105; F16H; F16H48/00; F16H48/12; F16H48/16; F16H48/38; F16H48/42; F16H2048/423; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2397673A
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US2630896A
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US2815838A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |