FR952002A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for the correction of the chromatic sensitivity of photoelectric cells and its various applications
Assignee: Jean-Alphonse-Achill Quere
•
Filing: 1947-08-12
•
Granted: 1949-11-08
•
Expires: 1967-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jean-Alphonse-Achill Quere
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 21:48
CPC Classifications
H; H01; H01J; H01J40/00
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.