FR692934A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to pumps or compressors
Assignee: Pierre Zens
•
Filing: 1929-06-28
•
Granted: 1930-11-13
•
Expires: 1949-06-28
Abstract
No abstract record available.
Inventors
- 👤 Pierre Zens
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/02; F04C2/063; F04C2/07
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.