FR1173007A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Multiple disc electromagnetic coupling device with adjustable air gap
Assignee: ZF Friedrichshafen AG
•
Filing: 1957-03-15
•
Granted: 1959-02-18
•
Expires: 1977-03-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 14:07
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/02; F16D27/04; F16D27/08; F16D2027/005
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.