DE680573C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Overflow valve, especially for rotary lobe fluid pumps
Assignee: FRIEDRICH AUGUST NEIDIG SOEHNE
•
Filing: 1936-09-26
•
Granted: 1939-08-31
•
Expires: 1956-09-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 14:48
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; F16K17/082
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.