Patent FR1160697A successfully refreshed from Google Patents.
FR1160697A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for preparing phosphorescent powders
Assignee: Ministère des Postes Télégraphes et Téléphones
•
Filing: 1954-12-18
•
Granted: 1958-07-24
•
Expires: 1974-12-18
Abstract
No abstract record available.
Inventors
- 👤 Otto Deutschbein
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-09 07:45
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/56; C09K11/562; C09K11/567
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.