← Back to Patent Explorer
DE725059C Expired / Lapsed DE ⏱️ 0.0 years remaining

Internal combustion engine with opposing pistons

Assignee: FRANZ CARL NEUMANN
•
Filing: 1941-03-27
•
Granted: 1942-09-12
•
Expires: 1961-03-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Franz Carl Neumann

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-05 03:37
CPC Classifications
F; F01; F01B; F01B7/00; F01B7/02; F01B7/14; F02; F02B; F02B39/00; F02B39/02; F02B39/04; F02B39/06; F02B61/00; F02B61/04; F02B75/00; F02B75/28

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