US5004864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dominant amylose-extender mutant of maize
Assignee: Iowa State University Research Foundation Inc
•
Filing: 1988-11-28
•
Granted: 1991-04-02
•
Expires: 2008-11-28
Abstract
Abstract A transferrable maize gene is disclosed which is a dominant mutant allele at the amylose-extender (ae) locus. Maize seeds having this gene produce a high-amylose starch.
Inventors
- 👤 Donald S. Robertson
- 👤 Philip S. Stinard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:25
CPC Classifications
A; A01; A01H; A01H6/00; A01H6/46; A01H6/4684
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
18 words
High amylose starch maize seeds containing at the amylose-extender (ae) locus at least one dominant mutant allele Ae-5180.
Claim 2
Dependent Claim
18 words
High amylose starch maize seeds containing at the amylose-extender (ae) locus at least one dominant mutant allele Ae-5180.
Claim 3
Dependent Claim
25 words
High amylose maize seeds produced by crossing two maize lines, said seeds containing at the amylose-extender (ae) locus at least one dominant mutant allele Ae-5180.
Claim 4
Dependent Claim
25 words
High amylose maize seeds produced by crossing two maize lines, said seeds containing at the amylose-extender (ae) locus at least one dominant mutant allele Ae-5180.
Claim 5
Dependent Claim
14 words
High amylose starch maize seeds containing at the amylose-extender (ae) locus homozygous Ae-5180 alleles.
Claim 6
Dependent Claim
14 words
High amylose starch maize seeds containing at the amylose-extender (ae) locus homozygous Ae-5180 alleles.
Claim 7
Dependent Claim
11 words
The maize seeds of claim 3 which are hybrid maize seeds.
Claim 8
Dependent Claim
11 words
The maize seeds of claim 3 which are inbred maize seeds.
Claim 9
Dependent Claim
15 words
Maize plants grown from the maize seeds of claims 1, 2, 3, 4, or 5.
Claim 10
Dependent Claim
41 words
Viable maize seeds and plants and succeeding generations thereof grown from the seeds deposited under ATCC Accession No. 40499, and maize seeds and plants to which the Ae-5180 dominant mutant allele is transferred from said deposited seeds or succeeding generations thereof.
Claim 11
Dependent Claim
41 words
Viable maize seeds and plants and succeeding generations thereof grown from the seeds deposited under ATCC Accession No. 40499, and maize seeds and plants to which the Ae-5180 dominant mutant allele is transferred from said deposited seeds or succeeding generations thereof.
Claim 12
Independent Claim
41 words
The method of developing hybrid maize seeds containing high amylose starch, comprising crossing a first maize line with a second maize line, at least one of said lines containing at its amylose-extender (ae) locus at least one dominant mutant allele Ae-5180.
Claim 13
Independent Claim
41 words
The method of developing hybrid maize seeds containing high amylose starch, comprising crossing a first maize line with a second maize line, at least one of said lines containing at its amylose-extender (ae) locus at least one dominant mutant allele Ae-5180.
Claim 14
Dependent Claim
22 words
The method of claim 8 in which at least one of said lines contains at the amylose-extender (ae) locus homozygous Ae-5180 alleles.
Claim 15
Dependent Claim
20 words
The method of claim 8 in which both of said lines contain at the amylose-extender (ae) locus homozygous Ae-5180 alleles.
Claim 16
Independent Claim
31 words
The method for directly producing high amylose maize seeds, comprising crossing a homozygous Ae-5180 line as a male onto a detasseled or male sterile wild type (Ae Ae) hybrid maize line.
Claim 17
Independent Claim
31 words
The method for directly producing high amylose maize seeds, comprising crossing a homozygous Ae-5180 line as a male onto a detasseled or male sterile wild type (Ae Ae) hybrid maize line.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |