FR438527A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Perfected still
Assignee: JOSEPH LABOUP
•
Filing: 1911-12-04
•
Granted: 1912-05-20
•
Expires: 1931-12-04
Abstract
No abstract record available.
Inventors
- 👤 Leon Delbru
- 👤 Joseph Laboup
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/001; B01D3/003
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.