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US3196173A
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Aminoalkanesulfonic acids
Assignee: Dehydag Deutsche Hydrierwerke GmbH
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Filing: 1957-06-19
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Granted: 1965-07-20
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Expires: 1977-06-19
Abstract
No abstract record available.
Inventors
- 👤 Willmund Wolf-Dieter
- 👤 Krings Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:19
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4993; A61Q; A61Q17/00; A61Q17/005; A61Q5/00; A61Q5/02; C11; C11D; C11D1/00; C11D1/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2673842A
Cited
US1944300A
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US2156996A
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US2543852A
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US2658072A
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US2677700A
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US2830082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |