FR656839A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Manufacturing process for advertising or signaling devices by reflection on mirrors
Assignee: Roger-Leopold Metzger
•
Filing: 1928-06-30
•
Granted: 1929-05-14
•
Expires: 1948-06-30
Abstract
No abstract record available.
Inventors
- 👤 Roger-Leopold Metzger
- 👤 Louis-Jean De Costier
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 19:32
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/14
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.