US3411886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of thionyl halide and aromatic acyl halides
Assignee: Sinclair Research Inc
•
Filing: 1965-08-16
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Granted: 1968-11-19
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Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Emmett H Burk
- 👤 Byron W Turnquest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:37
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/45; C01B17/4561; C01B17/4584; C07; C07C; C07C51/00; C07C51/58
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |