Patent US2745853A successfully refreshed from Google Patents.
US2745853A
Expired / Lapsed
US
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Preparation of amides
Assignee: ExxonMobil Oil Corp
•
Filing: 1953-02-02
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Granted: 1956-05-15
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Expires: 1973-02-02
Abstract
No abstract record available.
Inventors
- 👤 Lyle A Hamilton
- 👤 Robert H Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:39
CPC Classifications
C; C07; C07C; C07C231/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A PROCESS FOR PRODUCING AMIDES WHICH COMPRISES REACTING AN ETHYLENICALLY UNSATURATED HYDROCARBON HAVING NO CONJUGATED DOUBLE BONDS WITH A FORMAMIDE
Claim 2
Dependent Claim
20 words
A PROCESS FOR PRODUCING AMIDES WHICH COMPRISES REACTING AN ETHYLENICALLY UNSATURATED HYDROCARBON HAVING NO CONJUGATED DOUBLE BONDS WITH A FORMAMIDE
References Cited (Backward Citations)
US2013108A
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US2058013A
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US2457229A
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US2422632A
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US2478390A
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US2648685A
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US2608562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |