DE540869C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Flat vacuum cleaner nozzle, especially for cleaning the radiators of collective heating u. like
Assignee: Siemens Schuckertwerke AG
•
Filing: 1930-06-21
•
Granted: 1931-12-30
•
Expires: 1950-06-21
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Erwin Steglich
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 21:45
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/34
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.