← Back to Patent Explorer
DE720333C Expired / Lapsed DE ⏱️ 0.0 years remaining

Optical method for the simultaneous qualitative and quantitative investigation of density fields

Assignee: LUFTFAHRTFORSCHUNGSANSTALT HER
•
Filing: 1940-08-31
•
Granted: 1942-05-01
•
Expires: 1960-08-31
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Dr-Ing Theodor Zobel

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-23 21:59
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/41; G01N21/45

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