US1963258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of valuable products by oxidation and decarboxylation of aromatic compounds
Assignee: IG Farbenindustrie AG
•
Filing: 1928-04-21
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Granted: 1934-06-19
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Expires: 1948-04-21
Abstract
No abstract record available.
Inventors
- 👤 Brode Johannes
- 👤 Johannsen Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:00
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/377; C07C51/38; C07C46/00; C07C46/02; C07C46/04; C07C51/16; C07C51/31; C07C51/313; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93; Y10S585/932; Y10S585/934; Y10S585/94
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) | 1937-06-18 | 1937-12-18 | 1938-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-18 | 1941-12-18 | 1942-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-18 | 1945-12-18 | 1946-06-19 | $7700.00 | Window Closed / Lapsed |