FR509803A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Non-deformable drawing board
Assignee: FERDINAND DARNAY
•
Filing: 1920-02-11
•
Granted: 1920-11-20
•
Expires: 1940-02-11
Abstract
No abstract record available.
Inventors
- 👤 Maurice Leduc
- 👤 Ferdinand Darnay
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 19:34
CPC Classifications
B; B43; B43L; B43L5/00
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.