FR872437A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for preparing polymethacrylic acid, or mixed polymerizates containing it, suitable for its transformation into solutions of its salts
Assignee: Roehm GmbH Darmstadt
•
Filing: 1941-05-23
•
Granted: 1942-06-08
•
Expires: 1961-05-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 22:47
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/04; C08F20/06; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
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.