Patent FR1275697A successfully refreshed from Google Patents.
FR1275697A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Rotary pump with helical rotor with rotating stuffing box
Assignee: Ernesto Valente
•
Filing: 1960-12-06
•
Granted: 1961-11-10
•
Expires: 1980-12-06
Abstract
No abstract record available.
Inventors
- 👤 Ernesto Valente
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 11:49
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1076
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.