US3061628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and preparation of amino nitriles and acetic acids
Assignee: Hampshire Chemical Corp
•
Filing: 1958-09-12
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Granted: 1962-10-30
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Expires: 1978-09-12
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Singer
- 👤 Weisberg Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:35
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
THE METHOD OF PREPARING ACETO NITRILE COMPOUNDS WHEREIN THE ACETO NITRILE GROUP IS ATTACHED TO A TERTIARY AMINO NITROGEN ATOM IN A COMPOUND HAVING A FORMULA CORRESPONDING TO THE FOLLOWING:
Claim 2
Independent Claim
30 words
THE METHOD OF PREPARING ACETO NITRILE COMPOUNDS WHEREIN THE ACETO NITRILE GROUP IS ATTACHED TO A TERTIARY AMINO NITROGEN ATOM IN A COMPOUND HAVING A FORMULA CORRESPONDING TO THE FOLLOWING:
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |