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Patent US2755751A successfully refreshed from Google Patents.
US2755751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain drill
Assignee: Individual
•
Filing: 1953-03-30
•
Granted: 1956-07-24
•
Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Emil A Beilke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:36
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US402677A
Cited
US474430A
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US203207A
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US220526A
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US225640A
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US294791A
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US323953A
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US335468A
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US120423A
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DE277201C
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US410064A
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US486637A
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US490833A
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US889947A
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US1104602A
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US1272466A
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US2659289A
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US2658463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |