DE478400C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Friction joint connection for electric lamps
Assignee: Individual
•
Filing: 1927-08-24
•
Granted: 1929-06-25
•
Expires: 1947-08-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 17:16
CPC Classifications
F; F21; F21S; F21S6/00; F16; F16C; F16C11/00; F16C11/04; F16C11/10; F21V; F21V21/00; F21V21/14; F21V21/26
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.