US1770165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of organic compounds containing oxygen
Assignee: Du Pont Ammonia Corp
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Filing: 1926-01-29
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Granted: 1930-07-08
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Expires: 1946-01-29
Abstract
No abstract record available.
Inventors
- 👤 Patart Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/16; B; B65; B65D; B65D65/00; B65D65/38; C07C31/00; C07C31/02; C07C31/04
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) | 1933-07-07 | 1934-01-06 | 1934-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-07-07 | 1938-01-06 | 1938-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-07-07 | 1942-01-06 | 1942-07-08 | $7700.00 | Window Closed / Lapsed |