US2799679A
Expired / Lapsed
US
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Process of preparing amides of heterocyclic carboxylic acids
Assignee: Saab Bofors AB
•
Filing: 1955-07-28
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Granted: 1957-07-16
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Expires: 1975-07-28
Abstract
No abstract record available.
Inventors
- 👤 Ekenstam Bo Thuresson Af
- 👤 Egner Borje Per Harald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:28
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/81
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
METHOD OF MANUFACTURING AMIDES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
8 words
METHOD OF MANUFACTURING AMIDES HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |