Patent DE686284C successfully refreshed from Google Patents.
DE686284C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
coupling
Assignee: RUDOLF KNORR
•
Filing: 1938-01-12
•
Granted: 1940-01-06
•
Expires: 1958-01-12
Abstract
No abstract record available.
Inventors
- 👤 Adolf Hummel
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 08:03
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/12; F16D2023/123
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.