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US2401743A
Expired / Lapsed
US
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Processes of producing ether alcohols
Assignee: Heyden Chemical Corp
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Filing: 1943-02-01
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Granted: 1946-06-11
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Expires: 1963-02-01
Abstract
No abstract record available.
Inventors
- 👤 Philip I Bowman
- 👤 Robert H Barth
- 👤 Burrell Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:57
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/02; C07C41/03; C07B; C07B61/00
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) | 1949-06-10 | 1949-12-10 | 1950-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-10 | 1953-12-10 | 1954-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-10 | 1957-12-10 | 1958-06-11 | $7700.00 | Window Closed / Lapsed |