Patent US2812661A successfully refreshed from Google Patents.
Patent US5749825A successfully refreshed from Google Patents.
DE536754C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of rayon
Assignee: Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
•
Filing: 1929-01-27
•
Granted: 1931-10-26
•
Expires: 1949-01-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 14:21
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/58; D01F6/72
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.