Patent US2981213A successfully refreshed from Google Patents.
US2981213A
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US
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Flexible planter unit
Assignee: International Motors LLC
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Filing: 1958-06-13
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Granted: 1961-04-25
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Expires: 1978-06-13
Abstract
No abstract record available.
Inventors
- 👤 Gordon R O'neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:50
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1434575A
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US2054513A
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US2064480A
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US2328174A
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US2694356A
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US2833197A
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AT193645B
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DE1008511B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |