US2302885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrohalides of substituted isothio-ureas and a process of preparing them
Assignee: GAF Chemicals Corp
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Filing: 1938-12-03
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Granted: 1942-11-24
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Expires: 1958-12-03
Abstract
No abstract record available.
Inventors
- 👤 Orthner Ludwig
- 👤 Balle Gerhard
- 👤 Dittus Georg
- 👤 Wagner Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07C; C07C335/00; C07C335/30; C07C335/32
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) | 1945-11-23 | 1946-05-25 | 1946-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-23 | 1950-05-25 | 1950-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-23 | 1954-05-25 | 1954-11-24 | $7700.00 | Window Closed / Lapsed |