US2749694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible heavy duty disc harrow
Assignee: Ferguson Harry Inc
•
Filing: 1952-01-02
•
Granted: 1956-06-12
•
Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 Herman G Klemm
- 👤 Guy F Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:04
CPC Classifications
A; A01; A01B; A01B21/00; A01B21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US540550A
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US1297302A
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US1007496A
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US1568896A
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US1704929A
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US1760940A
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US2233665A
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US2320624A
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US2596579A
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US2652761A
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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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |