Patent US4141832A successfully refreshed from Google Patents.
Patent CH217208A successfully refreshed from Google Patents.
CH217208A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Vacuum cleaner mouthpiece.
Assignee: Heem V D Nv
•
Filing: 1940-10-31
•
Granted: —
•
Expires: 1960-10-31
Abstract
No abstract record available.
Inventors
- 👤 Van Der Heem N V
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-08 20:34
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/06; A47L9/0633; A47L9/064; A47L9/0653
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.