Patent US3454657A successfully refreshed from Google Patents.
US3454657A
Expired / Lapsed
US
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Catalytic synthesis of organic halogen compounds
Assignee: Dow Chemical Co
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Filing: 1967-08-24
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Granted: 1969-07-08
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Expires: 1987-08-24
Abstract
No abstract record available.
Inventors
- 👤 Dalton L Decker
- 👤 Carl Moore
- 👤 William F Tousignant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:47
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/25; C07C17/26; C07C17/272; C07C17/275; C07C253/00; C07C253/30; C07C41/00; C07C41/01; C07C41/18; C07C41/30; C07C67/00; C07C67/30; C07C67/333; C07C67/343; C07C67/347; C07C2601/00; C07C2601/12; C07C2601/14; C07C2602/00; C07C2602/36; C07C2602/42
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) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |