SE382329B
Expired / Lapsed
SE
⏱️ 0.0 years remaining
METHOD OF PRODUCING ION EXCHANGERS CONSISTING OF ROUND GRAINS OF SUBSTITUTED CELLULOSA
Assignee: Pharmacia Fine Chemicals Ab
•
Filing: 1970-08-07
•
Granted: —
•
Expires: 1990-08-07
Abstract
No abstract record available.
Inventors
- 👤 B A Andreassen
Bibliographic Details
Application Number
—
Jurisdiction
SE
Data Source
google_patents
Last Synchronized
2026-11-09 03:13
CPC Classifications
B; B01; B01J; B01J41/00; B01J41/08; B01J41/12; B01J41/16; C; C08; C08B; C08B11/00; C08B11/02; C08B11/04; C08B11/14
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.