US3369019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of heterocyclic compounds
Assignee: Mobil Oil AS
•
Filing: 1963-11-26
•
Granted: 1968-02-13
•
Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Lyle A Hamilton
- 👤 Phillip S Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:47
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/023; C07C; C07C321/00; C07C323/00; C07D319/00; C07D319/10; C07D319/12; C07D487/00; C07D487/02; C07D487/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
A PROCESS FOR PRODUCING HETEROCYCLIC COMPOUNDS CONTAINING HETERO NITROGEN ATOMS WHICH COMPRISES EFFECTING REACTION OF AMMONIA WITH AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DICHLOROETHANE, ETHYLENE OXIDE, ETHANOLAMINE AND DIETHANOLAMINE AT A TEMPERATURE OF FROM ABOUT 100* TO ABOUT 600*C. IN THE PRESENCE OF A CATALYST COMPRISING AN ALUMINO-SILICATE CONTAINING ACTIVE CATION SITES WITHIN AN ORDERED INTERNAL STRUCTURE; SAID ORDERED INTERNAL STRUCTURE HAVING A PORE SIZE OF AT LEAST 5A. IN DIAMETER.
Claim 2
Dependent Claim
76 words
A PROCESS FOR PRODUCING HETEROCYCLIC COMPOUNDS CONTAINING HETERO NITROGEN ATOMS WHICH COMPRISES EFFECTING REACTION OF AMMONIA WITH AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DICHLOROETHANE, ETHYLENE OXIDE, ETHANOLAMINE AND DIETHANOLAMINE AT A TEMPERATURE OF FROM ABOUT 100* TO ABOUT 600*C. IN THE PRESENCE OF A CATALYST COMPRISING AN ALUMINO-SILICATE CONTAINING ACTIVE CATION SITES WITHIN AN ORDERED INTERNAL STRUCTURE; SAID ORDERED INTERNAL STRUCTURE HAVING A PORE SIZE OF AT LEAST 5A. IN DIAMETER.
Claim 3
Dependent Claim
39 words
A PROCESS FOR PRODUCING PIPERAZINE WHICH COMPRISES EFFECTING REACTION OF AMMONIA AND ETHYLENE OXIDE AT A TEMPERATURE OF FROM ABOUT 100* TO ABOUT 400*C. IN THE PRESENCE OF A SODIUM FORM OF FAUJASITE AND RECOVERING A PRODUCT OF PIPERAZINE.
Claim 4
Dependent Claim
39 words
A PROCESS FOR PRODUCING PIPERAZINE WHICH COMPRISES EFFECTING REACTION OF AMMONIA AND ETHYLENE OXIDE AT A TEMPERATURE OF FROM ABOUT 100* TO ABOUT 400*C. IN THE PRESENCE OF A SODIUM FORM OF FAUJASITE AND RECOVERING A PRODUCT OF PIPERAZINE.
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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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |