← Back to Patent Explorer
DE767133C Expired / Lapsed DE ⏱️ 0.0 years remaining

Four-stroke internal combustion engine that works with flushing of the compression chamber and is equipped with valves suspended in the cylinder cover and trough-shaped depressions in the piston crown

Assignee: Individual
•
Filing: 1939-12-09
•
Granted: 1951-11-08
•
Expires: 1959-12-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Alfred Dr-Ing Buechi

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-03 05:14
CPC Classifications
F; F02; F02B; F02B29/00; F02B23/00; F02B23/02; F02B23/04; F02B3/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2720/00; F02B2720/22; F02B2720/221; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

FR694168A Cited
DE639831C Cited
FR790892A Cited
GB433342A Cited
FR825837A Cited

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