Patent US1230418A successfully refreshed from Google Patents.
Patent DE1009366B successfully refreshed from Google Patents.
DE1009366B
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Vacuum cleaner nozzle with brush insert
Assignee: Siemens Corp
•
Filing: 1952-12-09
•
Granted: —
•
Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Robert Helwig
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 17:13
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/06; A47L9/066
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.