US4607453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid corn plants with improved standability
Assignee: DeKalb Genetics Corp
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Filing: 1985-02-21
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Granted: 1986-08-26
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Expires: 2005-02-21
Abstract
Abstract Novel F1 hybrid corn plants DK 672, novel seeds of the hybrid, seeds produced by cultivation of the hybrid, cells which upon growth and differentiation produce the novel hybrid and a method to produce the novel hybrid are disclosed.
Inventors
- 👤 A. Forrest Troyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:30
CPC Classifications
A; A01; A01H; A01H6/00; A01H6/46; A01H6/4684
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
8 words
Novel F1 generation hybrid corn plants DK 672.
Claim 2
Dependent Claim
8 words
Novel F1 generation hybrid corn plants DK 672.
Claim 3
Dependent Claim
8 words
Novel F1 generation hybrid corn seed DK 672.
Claim 4
Dependent Claim
8 words
Novel F1 generation hybrid corn seed DK 672.
Claim 5
Dependent Claim
13 words
Seeds produced by the cultivation of the novel hybrid plants of claim 1.
Claim 6
Dependent Claim
15 words
Cells which upon growth and differention produce the novel hybrid corn plants of claim 1.
Claim 7
Independent Claim
73 words
A method to produce novel hybrid corn seed DK 672 comprising the steps of: (a) planting in pollinating proximity seeds of corn varieties B73Ht and HBA1; (b) cultivating corn plants resulting from said planting until time of flowering; (c) at said flowering time, emasculating said flowers of said plants of variety B73Ht; (d) allowing natural cross pollination to occur between said varieties; and (e) harvesting seeds produced on said plants of variety B73Ht.
Claim 8
Independent Claim
73 words
A method to produce novel hybrid corn seed DK 672 comprising the steps of: (a) planting in pollinating proximity seeds of corn varieties B73Ht and HBA1; (b) cultivating corn plants resulting from said planting until time of flowering; (c) at said flowering time, emasculating said flowers of said plants of variety B73Ht; (d) allowing natural cross pollination to occur between said varieties; and (e) harvesting seeds produced on said plants of variety B73Ht.
References Cited (Backward Citations)
US4368592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |