FR525481A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Ribbon valve
Assignee: Individual
•
Filing: 1920-10-01
•
Granted: 1921-09-22
•
Expires: 1940-10-01
Abstract
No abstract record available.
Inventors
- 👤 Alphonse Papin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 23:45
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/141; F16K15/142
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.