← Back to Patent Explorer
FR991133A Expired / Lapsed FR ⏱️ 0.0 years remaining

Scientific popularization device of the periodic system of elements based on spectral x-ray analyzes

Assignee: Georges-Jurie Djounkovsky
•
Filing: 1944-04-03
•
Granted: 1951-10-01
•
Expires: 1964-04-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Georges-Jurie Djounkovsky
  • 👤 Stephan Kavos

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-29 21:21
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/24

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag