US2104789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogen substituted butadienes and process for preparing them
Assignee: EIDP Inc
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Filing: 1937-03-06
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Granted: 1938-01-11
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Expires: 1957-03-06
Abstract
No abstract record available.
Inventors
- 👤 Carothers Wallace Hume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:21
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/208; C07C17/35; C07C17/358; C07C21/00; C07C21/02; C07C21/19; C07C21/20; C08; C08F; C08F136/00; C08F136/02; C08F136/04; C08F136/14; C08F136/16
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) | 1941-01-10 | 1941-07-12 | 1942-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-10 | 1945-07-12 | 1946-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-10 | 1949-07-12 | 1950-01-11 | $7700.00 | Window Closed / Lapsed |