CH334541A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Component for the production of polygonal air ducts
Assignee: Kliro Luftkanalbau Johann Mand
•
Filing: 1957-06-18
•
Granted: —
•
Expires: 1977-06-18
Abstract
No abstract record available.
Inventors
- 👤 Mands Johann
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-08 05:23
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/0209; F16; F16L; F16L23/00; F16L23/12; F16L23/14; F16L9/00; F16L9/003; F24D; F24D5/00
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.