Patent US3308775A successfully refreshed from Google Patents.
US3308775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seed valve
Assignee: Individual
•
Filing: 1965-03-01
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Granted: 1967-03-14
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Orville J Klene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:52
CPC Classifications
A; A01; A01C; A01C5/00; A01C5/06; A01C5/062; A01C7/00; A01C7/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN COMBINATION WITH A FURROW OPENING TOOL, INCLUDING A BLADE HAVING A FORWARD END A REAR END, A KEEL BENEATH SAID BLADE, AND SIDE WALLS DEFINING A HOLLOW OPENENDED SEED CHAMBER AT THE REAR END OF SAID BLADE, A SEED VALVE, COMPRISING A RELATIVELY FLAT PLATE HAVING A SEED GUIDING NOTCH AT ITS LOWER END, AND MEANS PIVOTING SAID VALVE AT THE UPPER REAR END OF SAID SEED CHAMBER, NORMALLY CLOSING THE OPEN END THEREOF.
Claim 2
Dependent Claim
75 words
IN COMBINATION WITH A FURROW OPENING TOOL, INCLUDING A BLADE HAVING A FORWARD END A REAR END, A KEEL BENEATH SAID BLADE, AND SIDE WALLS DEFINING A HOLLOW OPENENDED SEED CHAMBER AT THE REAR END OF SAID BLADE, A SEED VALVE, COMPRISING A RELATIVELY FLAT PLATE HAVING A SEED GUIDING NOTCH AT ITS LOWER END, AND MEANS PIVOTING SAID VALVE AT THE UPPER REAR END OF SAID SEED CHAMBER, NORMALLY CLOSING THE OPEN END THEREOF.
References Cited (Backward Citations)
US2554205A
Cited
US2872883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |