Patent FR990825A successfully refreshed from Google Patents.
FR990825A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Method and apparatus for separating materials of different specific gravities, or particles of different size from one or more solids of the same density
Assignee: MINES DOMANIALES DE POTASSE
•
Filing: 1949-05-11
•
Granted: 1951-09-26
•
Expires: 1969-05-11
Abstract
No abstract record available.
Inventors
- 👤 Jules-Joseph Colin
- 👤 Richard Burr
- 👤 Andre Gafanesch
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 14:00
CPC Classifications
B; B04; B04C; B04C3/00
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.