Patent US3914419A successfully refreshed from Google Patents.
US3914419A
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US
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Two compartment one unit consecutively injectable liquid vitamin package
Assignee: Wyeth Holdings LLC
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Filing: 1975-01-10
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Granted: 1975-10-21
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Expires: 1995-01-10
Abstract
Abstract A stable liquid multivitamin preparation in injectable form contains thiamine (B1), riboflavin (B2), niacinamide, pyridoxine (B6), B12 (cyanocobalamin), and optionally biotin and dexpanthenol in one phase at pH 4.5 to 5.5; and in a second phase, at pH 6.8 to 7.6, sodium ascorbate (C), folic acid, and niacinamide, and optionally Vitamins A, D2 and E so that storage incompatible vitamin components are held in separate compartments of a syringe, in separate phases, for consecutive administration from a two compartment syringe; thereby minimizing loss of potency on storage.
Inventors
- 👤 Bruce Edwin Haeger
- 👤 Robert Arnold Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:25
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61M; A61M5/00; A61M5/178; A61M5/28; A61M5/284; A61M2005/1787; A61M5/31; A61M5/3129; A61M2005/3132
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
44 words
A STABLE AQUEOUS MULTIVITAMIN PREPARATION IN STERILE, STORAGE-STABLE INJECTABLE FORM IN A TWO COMPARTMENT HYPODERMIC SYRINGE COMPRISING TWO INCOMPATIBLE VITAMIN COMPONENTS EACH HELD IN A SEPARATE COMPARTMENT OF SAID SYRINGE, ONE OF SAID COMPONENTS HAVING A PH OF 6.8 TO 7.6 CONSISTING ESSENTIALLY OF:
Claim 2
Dependent Claim
44 words
A STABLE AQUEOUS MULTIVITAMIN PREPARATION IN STERILE, STORAGE-STABLE INJECTABLE FORM IN A TWO COMPARTMENT HYPODERMIC SYRINGE COMPRISING TWO INCOMPATIBLE VITAMIN COMPONENTS EACH HELD IN A SEPARATE COMPARTMENT OF SAID SYRINGE, ONE OF SAID COMPONENTS HAVING A PH OF 6.8 TO 7.6 CONSISTING ESSENTIALLY OF:
Claim 3
Dependent Claim
19 words
The preparation of claim 1 in which the component having a pH of 6.8 to 7.6 consists essentially of:
Claim 4
Dependent Claim
19 words
The preparation of claim 1 in which the component having a pH of 6.8 to 7.6 consists essentially of:
Claim 5
Dependent Claim
19 words
The preparation of claim 1 in which the component having a pH of 6.8 to 7.6 consists essentially of:
Claim 6
Dependent Claim
19 words
The preparation of claim 1 in which the component having a pH of 6.8 to 7.6 consists essentially of:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |