FR698340A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Centrifugal pump with closed vane impeller flared in diffuser on the perimeter
Assignee: Werkspoor NV
•
Filing: 1930-07-03
•
Granted: 1931-01-29
•
Expires: 1950-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 12:58
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2238; F04D29/2255
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.