Patent US2873985A successfully refreshed from Google Patents.
Patent FR805325A successfully refreshed from Google Patents.
FR805325A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for preparing alumina sulfate
Assignee: EGE LAB
•
Filing: 1935-08-08
•
Granted: 1936-11-17
•
Expires: 1955-08-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 19:49
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/68; C01F7/74; C01F7/743
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.