DE635522C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Detergents, wetting agents, dispersants and leveling agents
Assignee: IG Farbenindustrie AG
•
Filing: 1930-05-16
•
Granted: 1936-09-18
•
Expires: 1950-05-16
Abstract
No abstract record available.
Inventors
- 👤 Dr Winfrid Hentrich
- 👤 Dr Karl Hintzmann
- 👤 Dr Helmut Keppler
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-24 18:04
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/04; C11D1/10; A; A47; A47F; A47F5/00; A47F5/10; A47F5/11; A47F5/112; D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/647
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.