← Back to Patent Explorer
DE676496C Expired / Lapsed DE ⏱️ 0.0 years remaining

Photographic apparatus with a fixed-position reflex viewfinder with field lens above the actual recording chamber

Assignee: Voigtlander AG
•
Filing: 1934-12-09
•
Granted: 1939-06-05
•
Expires: 1954-12-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Karl Pritschow

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-06 09:47
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/18; G03B13/20

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