FR2272068A1
Expired / Lapsed
FR
⏱️ 0.0 years remaining
FR2272068A1 - - Google Patents
Assignee: SHELL INT RESEARCH
•
Filing: 1974-12-20
•
Granted: —
•
Expires: 1994-12-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 09:36
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/2243; C; C07; C07C; C07C46/00; C07C46/02; C07C46/06; C07C46/08; B01J2531/00; B01J2531/02; B01J2531/0238; B01J2531/0241; B01J2531/0252; B01J2531/80; B01J2531/84; B01J2531/845
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.