Patent US3499183A successfully refreshed from Google Patents.
Patent DE892886C successfully refreshed from Google Patents.
DE892886C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Draw-winding drum
Assignee: SIEMAG VERTRIEBSGESELLSCHAFT
•
Filing: 1939-09-18
•
Granted: 1953-10-12
•
Expires: 1959-09-18
Abstract
No abstract record available.
Inventors
- 👤 Hermann Buch
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 11:52
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/28; B21C47/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.