US3426083A
Expired / Lapsed
US
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Method for the manufacture of alkali metal salts of aromatic hydroxy compounds
Assignee: Hoechst AG
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Filing: 1965-05-28
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Granted: 1969-02-04
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Expires: 1985-05-28
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Otten
- 👤 Rudolf Halder
- 👤 Horst Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:31
CPC Classifications
B; B01; B01J; B01J10/00; B01J10/02; B01F; B01F25/00; B01F25/10; B01F27/00; B01F27/27; B01F27/272; B01F27/60; B01F27/74; B01J19/00; B01J19/18; B01J19/20; B29; B29B; B29B7/00; B29B7/74; B29B7/76; B01F2025/91; B01F2025/911; B01F27/80; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00105; B01J2219/00112; B01J2219/00121; B01J2219/00123; B01J2219/00132; B01J2219/0015; B01J2219/00155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |