Patent FR881981A successfully refreshed from Google Patents.
FR881981A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for preparing high molecular weight products
Assignee: IG Farbenindustrie AG
•
Filing: 1942-05-11
•
Granted: 1943-05-13
•
Expires: 1962-05-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 09:17
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40
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.