US3369412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed transmission
Assignee: DAVID LEE MCFARLAND
•
Filing: 1965-08-30
•
Granted: 1968-02-20
•
Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Douglas F Mcfarland
- 👤 Mcfarland David Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:17
CPC Classifications
F; F16; F16H; F16H23/00; F16H23/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2256079A
Cited
US3181475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |