US3278526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing mercapto-and thioether-substituted heterocyclic nitrogen-containing compounds
Assignee: Phillips Petroleum Co
•
Filing: 1962-03-08
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Granted: 1966-10-11
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Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Rector P Louthan
- 👤 Raymond L Cobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:49
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/263; C07D207/27
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
18 words
A PROCESS FOR PREPARING ORGANIC COMPOUNDS, WHICH COMPRISES REACTING AN N-ALKENYL AMIDE SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
18 words
A PROCESS FOR PREPARING ORGANIC COMPOUNDS, WHICH COMPRISES REACTING AN N-ALKENYL AMIDE SELECTED FROM THE GROUP CONSISTING OF
Claim 3
Dependent Claim
24 words
THE PROCESS WHICH COMPRISES REACTING N-VINYLCAP ROLACTAM WITH HYDROGEN SULFIDE IN THE PRESENCE OF ULTRAVIOLET RADIATION AND RECOVERING N-2-MERCAPTOETHYLCAPROLACTAM FROM THE RESULTING REACTION MIXTURE.
Claim 4
Dependent Claim
24 words
THE PROCESS WHICH COMPRISES REACTING N-VINYLCAP ROLACTAM WITH HYDROGEN SULFIDE IN THE PRESENCE OF ULTRAVIOLET RADIATION AND RECOVERING N-2-MERCAPTOETHYLCAPROLACTAM FROM THE RESULTING REACTION MIXTURE.
References Cited (Backward Citations)
US2411983A
Cited
US2411961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |