Patent EP0538858A1 successfully refreshed from Google Patents.
US3178965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving-steering transmission
Assignee: Davis Manufacturing Inc
•
Filing: 1962-05-10
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Granted: 1965-04-20
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Expires: 1982-05-10
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Mayfield
- 👤 Marvin C Darling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:48
CPC Classifications
F; F16; F16H; F16H37/00; F16H2700/00; F16H2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19112; Y10T74/19116
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2421139A
Cited
US2889716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |