Patent US3395557A successfully refreshed from Google Patents.
US2392864A
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Derivatives of the dialkyl ethane-and di-ethyl ethene series and process of making the same
Assignee: Merck Sharp & Dohme LLC
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Filing: 1940-02-08
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Granted: 1946-01-15
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Expires: 1960-02-08
Abstract
No abstract record available.
Inventors
- 👤 Schoeller Walter
- 👤 Inhoffen Hans Herloff
- 👤 Steinruck Konrad
- 👤 Hoss Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:02
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/385; C07C49/487; C07C49/507; C07C45/00; C07C45/27; C07C45/29; C07C45/292; C07C45/61; C07C45/63; C07C45/65; C07C49/417
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) | 1949-01-14 | 1949-07-16 | 1950-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-01-14 | 1953-07-16 | 1954-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-01-14 | 1957-07-16 | 1958-01-15 | $7700.00 | Window Closed / Lapsed |