Patent US571264A successfully refreshed from Google Patents.
Patent US1727731A successfully refreshed from Google Patents.
Patent US3308197A successfully refreshed from Google Patents.
Patent FR1454845A successfully refreshed from Google Patents.
← Back to Patent Explorer
FR1454845A Expired / Lapsed FR ⏱️ 0.0 years remaining

Light emitting device

Assignee: George D Cooper
•
Filing: 1965-11-24
•
Granted: 1966-10-07
•
Expires: 1985-11-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 George D Cooper

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-30 20:24
CPC Classifications
F; F21; F21V; F21V29/00; F21V29/50; F21V29/70; F21V29/83; F21V7/00; F21V7/22; F21V7/24; F21V7/28; F21V9/00; F21V9/04; F21Y; F21Y2103/00

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag