Patent US3107103A successfully refreshed from Google Patents.
US3107103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor having two tandem steering wheels
Assignee: Individual
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Filing: 1961-04-19
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Granted: 1963-10-15
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Expires: 1981-04-19
Abstract
No abstract record available.
Inventors
- 👤 Lely Cornelis Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:25
CPC Classifications
B; B62; B62D; B62D61/00; B62D61/06; B62D61/08; B62D49/00; B62D49/06; B62D49/0657; B62D7/00; B62D7/02; B62D7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AN AGRICULTURAL TRACTOR COMPRISING A CHASIS, A FIRST SET OF LATERALLY SPACED RUNNING WHEELS OPERATIVELY ASSOCIATED WITH SAID CHASIS SUPPORTED IN FIXED RELATIONSHIP WITH RESPECT THERETO, A SECOND SET OF TWO STEERABLE RUNNING WHEELS HAVING RESPECTIVE AXES OF ROTATION AND ARRANGED BEHIND ONE ANOTHER IN FIXED RELATIVE POSITIONS, FIRST MEANS SUPPORTING THE SECOND SET OF WHEELS ON SAID CHASIS FOR ROTATION ABOUT A SUBSTANTIALLY VERTICAL AXIS WITH THE WHEELS OF THE SECOND SET SPACED DIFFERENT DISTANCES FROM SAID VERTICAL AXIS, AND SECOND MEANS COUPLED
Claim 2
Dependent Claim
84 words
AN AGRICULTURAL TRACTOR COMPRISING A CHASIS, A FIRST SET OF LATERALLY SPACED RUNNING WHEELS OPERATIVELY ASSOCIATED WITH SAID CHASIS SUPPORTED IN FIXED RELATIONSHIP WITH RESPECT THERETO, A SECOND SET OF TWO STEERABLE RUNNING WHEELS HAVING RESPECTIVE AXES OF ROTATION AND ARRANGED BEHIND ONE ANOTHER IN FIXED RELATIVE POSITIONS, FIRST MEANS SUPPORTING THE SECOND SET OF WHEELS ON SAID CHASIS FOR ROTATION ABOUT A SUBSTANTIALLY VERTICAL AXIS WITH THE WHEELS OF THE SECOND SET SPACED DIFFERENT DISTANCES FROM SAID VERTICAL AXIS, AND SECOND MEANS COUPLED
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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |