CH292913A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Tubular heat exchanger.
Assignee: Escher Wyss Ag
•
Filing: 1951-06-23
•
Granted: —
•
Expires: 1971-06-23
Abstract
No abstract record available.
Inventors
- 👤 Aktiengesellschaft Escher Wyss
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-29 17:40
CPC Classifications
F; F16; F16L; F16L39/00; F28; F28F; F28F9/00; F28F9/02; F28F9/04; F28F9/06; F28F9/14
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.