Patent US3189646A successfully refreshed from Google Patents.
US3189646A
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Process for the preparation of n-methylol amide derivatives
Assignee: Coastal Interchemical Co
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Filing: 1962-04-26
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Granted: 1965-06-15
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Expires: 1982-04-26
Abstract
No abstract record available.
Inventors
- 👤 Norman B Rainer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:21
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A PROCESS FOR THE PRODUCTION OF N-METHYLOL ACETAMIDO AMINE COMPOUNDS COMPRISING REACTING A CYANOMETHYLAMINE COMPOUND WITH FORMALDEHYDE AND WATER IN A REACTION ZONE CONTAINING AMMONIA.
Claim 2
Dependent Claim
25 words
A PROCESS FOR THE PRODUCTION OF N-METHYLOL ACETAMIDO AMINE COMPOUNDS COMPRISING REACTING A CYANOMETHYLAMINE COMPOUND WITH FORMALDEHYDE AND WATER IN A REACTION ZONE CONTAINING AMMONIA.
References Cited (Backward Citations)
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Cited
US2269147A
Cited
US2534204A
Cited
US2516674A
Cited
US2921085A
Cited
DE1102135B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |