FR986047A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Tubular diaphragm closure device
Assignee: Hubert-Achille-Franc Andrieu
•
Filing: 1949-03-01
•
Granted: 1951-07-26
•
Expires: 1969-03-01
Abstract
No abstract record available.
Inventors
- 👤 Hubert-Achille-Franc Andrieu
- 👤 Maurice-Hubert-Alp Buchholtzer
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/10
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.