Patent US2525076A successfully refreshed from Google Patents.
Patent US2796140A successfully refreshed from Google Patents.
US2796140A
Expired / Lapsed
US
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Powered tractor with front and rear wheel steering controls
Assignee: Heinrich Lanz AG
•
Filing: 1952-05-16
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Granted: 1957-06-18
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Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Knolle Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:17
CPC Classifications
A; A01; A01B; A01B51/00; A01B51/02; A01B51/026; B; B62; B62D; B62D49/00; B62D49/06; B62D49/065; B62D49/0692; B62D9/00; Y; Y10; Y10S; Y10S180/00; Y10S180/90; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/2014; Y10T74/20207; Y10T74/20213; Y10T74/20576; Y10T74/20582; Y10T74/20588; Y10T74/20594
Claims Analysis
Total Claims: 0
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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) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |