Patent CH294137A successfully refreshed from Google Patents.
CH294137A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Heat exchange device.
Assignee: Junkers & Co
•
Filing: 1950-09-09
•
Granted: —
•
Expires: 1970-09-09
Abstract
No abstract record available.
Inventors
- 👤 Gmbh Junkers Co
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-29 22:26
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/30
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.