← Back to Patent Explorer
DE540282C Expired / Lapsed DE ⏱️ 0.0 years remaining

Device for alternately driving films, especially sound films, in different directions

Assignee: Selenophon Licht & Tonbildges
•
Filing: 1930-04-16
•
Granted: 1931-12-14
•
Expires: 1950-04-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-30 08:33
CPC Classifications
G; G11; G11B; G11B7/00; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43; G03B21/44; G03B31/00; G03B31/02; G11B15/00; G11B15/18; G11B15/44

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