Patent FR1291890A successfully refreshed from Google Patents.
FR1291890A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Manufacturing process for chlorinated hydrocarbons
Assignee: PPG Industries Inc
•
Filing: 1961-05-12
•
Granted: 1962-04-27
•
Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 11:35
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/1827; C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; C07C17/152
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.