DE755129C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Ball piston pump with tumbling rotating ball piston and ball cutouts
Assignee: Individual
•
Filing: 1941-08-23
•
Granted: 1955-04-28
•
Expires: 1961-08-23
Abstract
No abstract record available.
Inventors
- 👤 Reinhard Scharf
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-09 07:12
CPC Classifications
F; F04; F04C; F04C3/00; F04C3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE634271C
Cited
US2094143A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.