Patent FR1141114A successfully refreshed from Google Patents.
FR1141114A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Pre-stressed hollow bodies, whether or not buried, and their method of obtaining
Assignee: ENTPR S CAMPENON BERNARD
•
Filing: 1956-01-16
•
Granted: 1957-08-26
•
Expires: 1976-01-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 23:33
CPC Classifications
E; E21; E21D; E21D11/00; E21D11/04; E04; E04G; E04G21/00; E04G21/12; E04G2021/127
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.