Patent FR1344558A successfully refreshed from Google Patents.
FR1344558A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to filtering elements for air or other gas purifiers
Assignee: J B Thorne & Son Ltd
•
Filing: 1962-11-16
•
Granted: 1963-11-29
•
Expires: 1982-11-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 20:25
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/06
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.