US3297587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of cyanopyridines
Assignee: —
•
Filing: —
•
Granted: 1967-01-10
•
Expires: 1984-01-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:16
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198; B01J27/199; B01J23/00; B01J23/002; B01J27/185; B01J27/1853; B01J2523/00; B01J2523/10; B01J2523/15; B01J2523/50; B01J2523/51; B01J2523/55; B01J2523/60; B01J2523/67; B01J2523/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A CATALYST FOR PRODUCING CYANOPYRIDINES FROM ALKYLATED PYRIDINES WITH OXYGEN AND AMMONIA CONSISTING OF A MIXTURE OF (A) A PHOSPHORIC ACID IN AN AMOUNT AT LEAST ABOUT 5% BY WEIGHT BASED ON THE MIXTURE, CALCULATED AS P2O5, (B) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, TITANIUM, DIOXYHYDRATE AND ZIRCONIUM DIOXIDE, AND MIXTURES THEREOF, AND (C) A COMPOUND OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, IRON, COBALT, NICKEL, BISMUTH, ANTIMONY, VANADIUM, NIOBIUM, CERIUM, CHROMIUM, MOLYBDENUM AND TUNGSTEN AND MIXTURES THEREOF, SAID MIXTURE HAVING BEEN SOLIDIFIED BY HEATING.
Claim 2
Dependent Claim
93 words
A CATALYST FOR PRODUCING CYANOPYRIDINES FROM ALKYLATED PYRIDINES WITH OXYGEN AND AMMONIA CONSISTING OF A MIXTURE OF (A) A PHOSPHORIC ACID IN AN AMOUNT AT LEAST ABOUT 5% BY WEIGHT BASED ON THE MIXTURE, CALCULATED AS P2O5, (B) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, TITANIUM, DIOXYHYDRATE AND ZIRCONIUM DIOXIDE, AND MIXTURES THEREOF, AND (C) A COMPOUND OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, IRON, COBALT, NICKEL, BISMUTH, ANTIMONY, VANADIUM, NIOBIUM, CERIUM, CHROMIUM, MOLYBDENUM AND TUNGSTEN AND MIXTURES THEREOF, SAID MIXTURE HAVING BEEN SOLIDIFIED BY HEATING.
References Cited (Backward Citations)
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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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |