US2086822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing aromatic asymmetrical thiourea derivatives
Assignee: General Aniline Works Inc
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Filing: 1933-09-01
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Granted: 1937-07-13
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Expires: 1953-09-01
Abstract
No abstract record available.
Inventors
- 👤 Schubert Max
- 👤 Schutz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:44
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/38; C07C; C07C335/00; C07C335/04; C07C335/16; C07D209/00; C07D209/56; C07D209/80; C07D209/82; C07D209/88; C07D231/00; C07D231/54; C07D231/56
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) | 1940-07-12 | 1941-01-11 | 1941-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-07-12 | 1945-01-11 | 1945-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-07-12 | 1949-01-11 | 1949-07-13 | $7700.00 | Window Closed / Lapsed |