FR687675A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Method and devices for automatic ignition of heavy fuel burners
Assignee: Rachel Langmann
•
Filing: 1930-01-04
•
Granted: 1930-08-12
•
Expires: 1950-01-04
Abstract
No abstract record available.
Inventors
- 👤 Rachel Langmann
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 06:07
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/42; F24; F24H; F24H1/00
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.