Patent US5587830A successfully refreshed from Google Patents.
Patent DE593370C successfully refreshed from Google Patents.
← Back to Patent Explorer
DE593370C Expired / Lapsed DE ⏱️ 0.0 years remaining

Purification of the raw phosphoric acid obtained by the acid digestion of rock phosphates

Assignee: Chemische Fabrik Budenhiem KG
•
Filing: 1931-11-05
•
Granted: 1934-02-24
•
Expires: 1951-11-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Dr-Ing Guido Hedrich

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-08 17:19
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/18; C01B25/234; C01B25/237

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag