Patent FR738014A successfully refreshed from Google Patents.
FR738014A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to exhaust systems for engines or other vehicles
Assignee: Jean Chatelain
•
Filing: 1932-06-01
•
Granted: 1932-12-20
•
Expires: 1952-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jean Chatelain
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 04:48
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/14; F01N1/08; F01N1/086; F01N1/088; F01N3/00; F01N3/02; F01N3/05; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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.