DE631798C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for room lighting with daylight and artificial light, especially with both types of light at the same time
Assignee: THERESE JUNKERS GEB BENNHOLD
•
Filing: 1933-02-22
•
Granted: 1936-06-26
•
Expires: 1953-02-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 21:19
CPC Classifications
F; F21; F21S; F21S11/00; F21S19/00; F21S19/005
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.