FR75480E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Detachable self-tightening collar for metal props used for supports
Assignee: Jean Barnier
•
Filing: 1958-04-04
•
Granted: 1961-06-30
•
Expires: 1978-04-04
Abstract
No abstract record available.
Inventors
- 👤 Jean Barnier
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
E; E04; E04G; E04G25/00; E04G25/04; E04G25/08; E21; E21D; E21D15/00; E21D15/58; E21D15/581; E21D15/585; E21D15/586
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.