FR1302989A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for cooling a gas mixture at low temperature
Assignee: Air Liquide SA
•
Filing: 1961-06-01
•
Granted: 1962-09-07
•
Expires: 1981-06-01
Abstract
No abstract record available.
Inventors
- 👤 Maurice Grenier
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 20:35
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0257; C; C07; C07C; C07C7/00; C07C7/09; C08; C08G; C08G77/00; C10; C10G; C10G5/00; C10G5/06; F25J1/00; F25J1/0002; F25J1/0022; F25J1/003; F25J1/0032; F25J1/004; F25J1/0045; F25J1/02; F25J1/0201; F25J1/0202; F25J1/0228; F25J1/0229; F25J1/0231; F25J1/0235; F25J1/0237; F25J1/0243; F25J1/0244; F25J1/0245; F25J1/0249; F25J1/0257; F25J1/0262; F25J1/0264; F25J1/0265; F25J3/0204; F25J3/0209; F25J3/0233; F25J3/0242; F25J3/0247; F25J2200/00; F25J2200/02; F25J2200/50; F25J2200/70; F25J2200/74; F25J2200/76; F25J2200/80; F25J2205/00; F25J2205/02; F25J2205/04; F25J2215/00; F25J2215/04; F25J2215/64; F25J2215/66; F25J2220/00; F25J2220/60; F25J2220/64; F25J2290/00; F25J2290/34
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.