US2394003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble amidine salts
Assignee: May and Baker Ltd
•
Filing: 1942-04-11
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Granted: 1946-02-05
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Expires: 1962-04-11
Abstract
No abstract record available.
Inventors
- 👤 Newbery George
- 👤 Easson Alexander Peter Tawse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:40
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/07; C07C309/08; C07C257/00; C07C257/04; C07C257/08; C07C2603/00; C07C2603/02; C07C2603/40; C07C2603/42; C07C2603/48
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) | 1949-02-04 | 1949-08-06 | 1950-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-04 | 1953-08-06 | 1954-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-04 | 1957-08-06 | 1958-02-05 | $7700.00 | Window Closed / Lapsed |