Patent US3406202A successfully refreshed from Google Patents.
US3406202A
Expired / Lapsed
US
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Preparation of aniline thioethers
Assignee: Dow Chemical Co
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Filing: 1964-11-12
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Granted: 1968-10-15
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Reifschneider Walter
- 👤 Jacqueline S Kelyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:35
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/14; C07C209/18; C07C209/06; C07C209/10; C07C211/00; C07C211/43; C07C211/44; C07C211/49; C07C211/50; C07C211/52; C07C211/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |