US2927480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential drive
Assignee: Individual
•
Filing: 1957-01-24
•
Granted: 1960-03-08
•
Expires: 1977-01-24
Abstract
No abstract record available.
Inventors
- 👤 William M Schweickart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:18
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/16; F; F16; F16H; F16H61/00; F16H61/66; F16H61/662; F16H61/6625; F16H48/00; F16H48/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19102
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) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |