US2196016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble basic aluminum compounds
Assignee: IG Farbenindustrie AG
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Filing: 1938-01-22
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Granted: 1940-04-02
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Expires: 1958-01-22
Abstract
No abstract record available.
Inventors
- 👤 Huehn Werner
- 👤 Haufe Walfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:37
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/48; C01F7/64; C01F7/56; C01F7/57; C01F7/66; C01F7/68; C01F7/74; C01F7/741
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) | 1943-04-02 | 1943-10-02 | 1944-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-02 | 1947-10-02 | 1948-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-02 | 1951-10-02 | 1952-04-02 | $7700.00 | Window Closed / Lapsed |