Patent US2634293A successfully refreshed from Google Patents.
US2634293A
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Process of preparing a monobasic salt of a secondary amine
Assignee: Monsanto Chemicals Ltd
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Filing: 1947-11-26
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Granted: 1953-04-07
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Expires: 1967-11-26
Abstract
No abstract record available.
Inventors
- 👤 Lucas P Kyrides
- 👤 Ferdinand B Zienty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:33
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/68; C07C211/00; C07C211/33; C07C211/34; C07C211/36; C07C209/62; C07C209/82; C07C209/84; C07C209/86; C07C211/01; C07C211/02; C07C211/03; C07C211/09; C07C211/26; C07C211/27; C07C249/00; C07C249/02; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/26; C07D333/30; C07D333/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
IN THE PROCESS OF PREPARING A MONOBASIC SALT OF A SECONDARY AMINE OF THE FORMULA:
Claim 2
Dependent Claim
15 words
IN THE PROCESS OF PREPARING A MONOBASIC SALT OF A SECONDARY AMINE 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) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |