Patent US2529455A successfully refreshed from Google Patents.
US2529455A
Expired / Lapsed
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Process for preparing unsaturated amides
Assignee: Monsanto Chemicals Ltd
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Filing: 1947-12-30
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Granted: 1950-11-07
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Expires: 1967-12-30
Abstract
No abstract record available.
Inventors
- 👤 David T Mowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:26
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/04; C07D275/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A METHOD OF PREPARING NEW COMPOUNDS WHICH COMPRISES MIXING A METHYLOL DERIVATIVE HAVING THE STRUCTURE: X-CH2-OH WHEREIN X IS A RADICAL OF THE GROUP CONSISTING OF
Claim 2
Independent Claim
26 words
A METHOD OF PREPARING NEW COMPOUNDS WHICH COMPRISES MIXING A METHYLOL DERIVATIVE HAVING THE STRUCTURE: X-CH2-OH WHEREIN X IS A RADICAL OF THE GROUP CONSISTING OF
References Cited (Backward Citations)
US2320089A
Cited
US2279497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |