FR689191A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Preparation process and machine for depositing materials such as ore and coal using a pulsating or intermittent air stream
Assignee: CARLSHUTTE AKTIEN GES fur EISE
•
Filing: 1930-01-31
•
Granted: 1930-09-03
•
Expires: 1950-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
B; B03; B03B; B03B4/00; B03B4/04
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.