US2666491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Farm tractor
Assignee: Individual
•
Filing: 1950-02-03
•
Granted: 1954-01-19
•
Expires: 1970-02-03
Abstract
No abstract record available.
Inventors
- 👤 John A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:54
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/06; B62D49/0685
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190203461A
Cited
US1131729A
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US1093131A
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US1189378A
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US1289296A
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US1866393A
Cited
GB451813A
Cited
GB489445A
Cited
US2207447A
Cited
US2354830A
Cited
US2396881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |