FR952068A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to cation exchange substances and their methods of use
Assignee: Philips & Pain Ets
•
Filing: 1947-08-14
•
Granted: 1949-11-09
•
Expires: 1967-08-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 11:49
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/14; C13B20/144; B; B01; B01J; B01J39/00; B01J39/04; B01J39/05; B01J39/08; B01J39/16; B01J39/18; B01J39/19
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.