DE369807C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Circuit arrangement for command transmission systems with main and secondary signals, in which the absence of the receiving station is made known to the transmitter stations
Assignee: Siemens and Halske AG
•
Filing: 1921-03-19
•
Granted: 1923-02-23
•
Expires: 1941-03-19
Abstract
No abstract record available.
Inventors
- 👤 Hans Heintz
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
B; B66; B66B; B66B19/00; B66B19/06
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.