← Back to Patent Explorer
CH225631A Expired / Lapsed CH ⏱️ 0.0 years remaining

Self-priming circulation pump.

Assignee: Frantisek Ing Hejduk
•
Filing: 1941-12-24
•
Granted: —
•
Expires: 1961-12-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Frantisek Ing Hejduk
  • 👤 Neumann Jan Dr Ing

Bibliographic Details

Application Number —
Jurisdiction CH
Data Source google_patents
Last Synchronized 2026-10-29 08:05
CPC Classifications
F; F04; F04D; F04D5/00; B; B64; B64C; B64C11/00; B64C11/008; G; G01; G01S; G01S1/00; G01S1/02

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