US2579679A
Expired / Lapsed
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Stable vitamin b12 composition
Assignee: Abbott Laboratories
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Filing: 1949-09-22
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Granted: 1951-12-25
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Expires: 1969-09-22
Abstract
No abstract record available.
Inventors
- 👤 Marlin T Leffler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:28
CPC Classifications
A; A61; A61K; A61K31/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
A STABLE AQUEOUS VITAMIN B12 SOLUTION CONTAINING VITAMIN B12 AS AN ACTIVE INGREDIENT AND AT LEAST ABOUT 0.001% THIODIPROPIONIC ACID AS A STABILIZING AGENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |