FR864971A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to duplicators and similar machines
Assignee: Leon Louis Lievens
•
Filing: 1939-12-30
•
Granted: 1941-05-09
•
Expires: 1959-12-30
Abstract
No abstract record available.
Inventors
- 👤 Leon Louis Lievens
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 14:58
CPC Classifications
B; B65; B65H; B65H1/00; B65H1/08; B65H1/18; B41; B41L; B41L27/00; B41L27/24; B41L27/32; B41L27/34; B41L39/00; B41L39/04; B41L39/08
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.