Patent US1714378A successfully refreshed from Google Patents.
US1714378A
Expired / Lapsed
US
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Process of preparing keto-alcohols
Assignee: Winthrop Chemical Co Inc
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Filing: 1927-01-21
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Granted: 1929-05-21
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Expires: 1947-01-21
Abstract
No abstract record available.
Inventors
- 👤 Knorr Angelo
- 👤 Weissenborn Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:56
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/04; C07C49/17; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C49/20; C07C49/203; C07C49/213; C07C49/217; C07C49/587; C07C49/647; C07C49/76; C07C49/794
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) | 1932-05-20 | 1932-11-19 | 1933-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-05-20 | 1936-11-19 | 1937-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-05-20 | 1940-11-19 | 1941-05-21 | $7700.00 | Window Closed / Lapsed |