Patent US2999723A successfully refreshed from Google Patents.
US2999723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain for tractors
Assignee: Individual
•
Filing: 1956-05-31
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Granted: 1961-09-12
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Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Ostberg Jonas Martin
- 👤 Larsson Carl Viktor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:31
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/20; B62D55/202; B62D49/00; B62D49/06; B62D49/0621; B62D49/0635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1521454A
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US1560225A
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US1587097A
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US1942337A
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US2458755A
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US2470801A
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US2738236A
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US2712964A
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US2755146A
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US2719758A
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US2707658A
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US2770977A
Cited
US2739017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |