Patent FR774985A successfully refreshed from Google Patents.
FR774985A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Upflow drawing process for the manufacture of tubes or hollow bodies
Assignee: Maschb AG Vormals Ehrhardt & S
•
Filing: 1934-03-29
•
Granted: 1934-12-17
•
Expires: 1954-03-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 18:31
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/16; B21C1/22; B21C1/24; B21C1/26
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.