Patent US3111631A successfully refreshed from Google Patents.
Patent US3071153A successfully refreshed from Google Patents.
Patent US2673616A successfully refreshed from Google Patents.
US2673616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivotally connected steerable and driven tractor units
Assignee: Individual
•
Filing: 1952-05-23
•
Granted: 1954-03-30
•
Expires: 1972-05-23
Abstract
No abstract record available.
Inventors
- 👤 Urban A Moores
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:03
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/06; B62D55/065; B62D55/0655; B62D11/00; B62D11/20; B62D53/00; B62D53/02; B62D53/025; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19019
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1353848A
Cited
US915058A
Cited
US1126229A
Cited
US1364817A
Cited
US1416329A
Cited
US1623214A
Cited
US2232165A
Cited
US2252610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |