Patent US4216144A successfully refreshed from Google Patents.
US4216144A
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Soluble iron proteinates
Assignee: Individual
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Filing: 1977-10-20
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Granted: 1980-08-05
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Expires: 1997-10-20
Abstract
Abstract Iron proteinates or chelates of iron with hydrolyzed protein which are usually insoluble are rendered soluble without destroying the chelate and are more readily assimilable by plant and animals.
Inventors
- 👤 Harvey H. Ashmead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:43
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/02; C07F15/025; A; A23; A23K; A23K20/00; A23K20/20; A23K20/30; C05; C05D; C05D9/00; C05D9/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
75 words
An iron proteinate having a water solubility sufficient to provide an aqueous solution containing at least five precent by weight iron at ambient temperatures at a pH of between about 7 and 8 comprising an iron ion in co-ordination complex with at least three protein hydrolysate ligands selected from the group consisting of polypeptides, peptides and naturally occurring amino acids wherein at least one of the ligands contains an amino group having an excess proton.
Claim 2
Dependent Claim
75 words
An iron proteinate having a water solubility sufficient to provide an aqueous solution containing at least five precent by weight iron at ambient temperatures at a pH of between about 7 and 8 comprising an iron ion in co-ordination complex with at least three protein hydrolysate ligands selected from the group consisting of polypeptides, peptides and naturally occurring amino acids wherein at least one of the ligands contains an amino group having an excess proton.
Claim 3
Dependent Claim
16 words
A soluble iron proteinate according to claim 1 wherein the iron ion is a ferric ion.
Claim 4
Dependent Claim
16 words
A soluble iron proteinate according to claim 1 wherein the iron ion is a ferrous ion.
Claim 5
Dependent Claim
14 words
A soluble iron proteinate according to claim 1 wherein the proteinate contains three ligands.
References Cited (Backward Citations)
US1027967A
Cited
US3344130A
Cited
US3396104A
Cited
US3637640A
Cited
US3775132A
Cited
US3823127A
Cited
US4020158A
Cited
US3969540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |