DE538952C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Automatic safety shut-off device for pipelines
Assignee: HERBERT PITZ DIPL ING
•
Filing: 1930-04-17
•
Granted: 1931-11-19
•
Expires: 1950-04-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 02:00
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/32
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.