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Patent US2781291A successfully refreshed from Google Patents.
US2781291A
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Magnesium chelate of ethylenediaminetetraacetic acid for treatment of hypertension
Assignee: Dow Chemical Co
•
Filing: 1953-08-21
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Granted: 1957-02-12
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Expires: 1973-08-21
Abstract
No abstract record available.
Inventors
- 👤 Rubin Martin
- 👤 Frederick C Bersworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:38
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/06; Y; Y10; Y10S; Y10S424/00; Y10S424/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A MEDICAL PREPARATION CONSISTING OF A PYROGEN-FREE AQUEOUS SOLUTION OF CHEMICALLY PURE DISODIUM MAGNESIUM CHELATE COMPOUND OF ETHYLENEDIAMINE TETRAACETIC ACID HAVING A PH WITHIN THE RANGE 7.2 TO 7.4
Claim 2
Dependent Claim
29 words
A MEDICAL PREPARATION CONSISTING OF A PYROGEN-FREE AQUEOUS SOLUTION OF CHEMICALLY PURE DISODIUM MAGNESIUM CHELATE COMPOUND OF ETHYLENEDIAMINE TETRAACETIC ACID HAVING A PH WITHIN THE RANGE 7.2 TO 7.4
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) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |