FR666047A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to stopper systems for threadless tubing
Assignee: DURAND ET PILVEN
•
Filing: 1928-12-19
•
Granted: 1929-09-26
•
Expires: 1948-12-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 02:56
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406
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.