Patent US3882977A successfully refreshed from Google Patents.
Patent FR657574A successfully refreshed from Google Patents.
FR657574A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Centrifugal fan with movable flange
Assignee: Claude Arrachart
•
Filing: 1927-07-16
•
Granted: 1929-05-24
•
Expires: 1947-07-16
Abstract
No abstract record available.
Inventors
- 👤 Claude Arrachart
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 06:11
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/28; F04D29/287; F04D25/00; F04D25/16; F04D25/166
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.