FR1317409A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
heat exchanger and heating or air conditioning apparatus provided with said exchanger
Assignee: Nikolaus Laing
•
Filing: 1962-01-26
•
Granted: 1963-02-08
•
Expires: 1982-01-26
Abstract
No abstract record available.
Inventors
- 👤 Nikolaus Laing
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 20:06
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/0233; F28D1/024; F24; F24F; F24F1/00; F24F1/0007; F24F1/0059; F24F1/0071; F24F1/0073
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.