Patent DE691547C successfully refreshed from Google Patents.
DE691547C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for automatic control of the drive
Assignee: Kopp & Kausch
•
Filing: 1937-10-26
•
Granted: 1940-05-30
•
Expires: 1957-10-26
Abstract
No abstract record available.
Inventors
- 👤 Josef Ehrhart
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 19:23
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/0066
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.