US2835627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable vitamin b12 solutions
Assignee: Eli Lilly and Co
•
Filing: 1957-07-05
•
Granted: 1958-05-20
•
Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 James W Conine
- 👤 Donald A Zuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:10
CPC Classifications
A; A61; A61K; A61K31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A COMPOSITION COMPRISING AN AQUEOUS MULTIVITAMIN PREPARATION CONTAINING VITAMIN B12 AND ON A WEIGHT VOLUME BASIS ABOUT 0.005 TO ABOUT 0.5 PERCENT OF A COMPOUND OF THE GROUP CONSISTING OF AN A-HYDROXYNITRILE AND ITS ALIPHATIC AND MONOCYCLIC AROMATIC O-ACYL DERIVATIVES, SAID A-HYDROXYNITRILE BEING REPRESENTED BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
48 words
A COMPOSITION COMPRISING AN AQUEOUS MULTIVITAMIN PREPARATION CONTAINING VITAMIN B12 AND ON A WEIGHT VOLUME BASIS ABOUT 0.005 TO ABOUT 0.5 PERCENT OF A COMPOUND OF THE GROUP CONSISTING OF AN A-HYDROXYNITRILE AND ITS ALIPHATIC AND MONOCYCLIC AROMATIC O-ACYL DERIVATIVES, SAID A-HYDROXYNITRILE BEING REPRESENTED BY THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US1856186A
Cited
US1957134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |