FR501843A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Electric atmospheric motor
Assignee: Individual
•
Filing: 1918-10-09
•
Granted: 1920-04-27
•
Expires: 1938-10-09
Abstract
No abstract record available.
Inventors
- 👤 Justin-Etienne Christofleau
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 17:32
CPC Classifications
F; F03; F03D; F03D3/00; F03D3/04; F03D3/0436; F03D3/0445; F03D3/0454; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/74
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.