US2833197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment frame for tractor planters
Assignee: Deere and Co
•
Filing: 1953-11-09
•
Granted: 1958-05-06
•
Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 William P Oehler
- 👤 Charles H Youngberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:13
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23154E
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US2332616A
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US2351078A
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US2337662A
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GB549114A
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US2491153A
Cited
US2616349A
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US2683405A
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US2562486A
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US2575801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |