DE420656C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Hiss for internal combustion engines
Assignee: ALWIN LUEDERITZ
•
Filing: 1922-05-10
•
Granted: 1925-10-28
•
Expires: 1942-05-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 23:04
CPC Classifications
F; F01; F01L; F01L13/00
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.