US3062882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of n-arylalkyl amides
Assignee: PPG Industries Inc
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Filing: 1957-10-29
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Granted: 1962-11-06
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Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 Chester L Parris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:47
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
THE METHOD OF PREPARING 4,6-BIS(BENZAMIDOMETHYL)-M-XYLENE WHICH COMPRISES BRINGING TOGETHER AT A TEMPERATURE OF ABOUT 25*C. TO ABOUT 130*C., IN THE PRESENCE OF A MINERAL ACID CATALYST AND A MONOCARBOXYLIC ACID, BENZONITRILE AND 4,6-BIS(HYDROXYMETHYL)-M-XYLENE,
Claim 2
Independent Claim
14 words
THE METHOD OF PREPARING N-(ARYLMETHYL) AMIDES COMPRISING REACTING AN ARYL COMPOUND OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |