US2800485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making mono-
Assignee: —
•
Filing: —
•
Granted: 1957-07-23
•
Expires: 1974-07-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:05
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE METHOD OF MAKING A MONO-(A-ARYL)-SUBSTITUTED PYRIDINEMETHANOL WHICH COMPRISES THE STEP OF REACTING ONE MOLE OF PYRIDINE-ALDEHYDE WITH ONE MOLE OF AN ARYLMAGNESIUM HALIDE IN NON AQUEOUS MEDIUM.
Claim 2
Independent Claim
28 words
THE METHOD OF MAKING A MONO-(A-ARYL)-SUBSTITUTED PYRIDINEMETHANOL WHICH COMPRISES THE STEP OF REACTING ONE MOLE OF PYRIDINE-ALDEHYDE WITH ONE MOLE OF AN ARYLMAGNESIUM HALIDE IN NON AQUEOUS MEDIUM.
References Cited (Backward Citations)
US2606192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |