US2322783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of amides
Assignee: EMULSOL Corp
•
Filing: 1941-08-23
•
Granted: 1943-06-29
•
Expires: 1961-08-23
Abstract
No abstract record available.
Inventors
- 👤 Katzman Morris
- 👤 Albert K Epstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:25
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/45; C07C233/16; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/17
Claims Analysis
Total Claims: 0
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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) | 1946-06-28 | 1946-12-28 | 1947-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-28 | 1950-12-28 | 1951-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-28 | 1954-12-28 | 1955-06-29 | $7700.00 | Window Closed / Lapsed |