Patent US3538689A successfully refreshed from Google Patents.
US3538689A
Expired / Lapsed
US
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Combine harvesters
Assignee: C Van der Lely NV
•
Filing: 1967-09-14
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Granted: 1970-11-10
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Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 Cornelis Van Der Lely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:50
CPC Classifications
A; A01; A01F; A01F7/00; A01D; A01D41/00; A01D41/12; A01F12/00; A01F12/44; A01F12/442
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US551499A
Cited
US767184A
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US753705A
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US757307A
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US975598A
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US1082191A
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US1864772A
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US1917536A
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US2145330A
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US2314901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |