DE567693C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
A permanent magnet made from a piece of hardened steel with narrowed pole ends and an almost enclosed path of the lines of force
Assignee: Siemens and Halske AG
•
Filing: 1927-12-03
•
Granted: 1933-01-07
•
Expires: 1947-12-03
Abstract
No abstract record available.
Inventors
- 👤 Moritz Martens
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-27 16:13
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/02; H01F7/0205; H01F7/021
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.