US2744114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyridoxine synthesis
Assignee: Eli Lilly and Co
•
Filing: 1952-05-21
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Granted: 1956-05-01
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Expires: 1972-05-21
Abstract
No abstract record available.
Inventors
- 👤 Reuben G Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:23
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/73; C07D213/62; C07D213/63; C07D213/65; C07D213/66; C07D213/67; C07D213/78; C07D213/79; C07D213/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A PROCESS STEP IN THE PREPARATION OF PYRIDOXINE WHICH COMPRISES HEATING WITH LITHIUM BOROHYDRIDE IN AN ETHEREAL SOLVENT A COMPOUND REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
24 words
A PROCESS STEP IN THE PREPARATION OF PYRIDOXINE WHICH COMPRISES HEATING WITH LITHIUM BOROHYDRIDE IN AN ETHEREAL SOLVENT A COMPOUND REPRESENTED BY THE FORMULA
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) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |