DE718489C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of the head (spoon) for deep hole drills with carbide tipping
Assignee: Fritz Werner AG
•
Filing: 1938-12-16
•
Granted: 1942-03-13
•
Expires: 1958-12-16
Abstract
No abstract record available.
Inventors
- 👤 Johannes Richter
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 09:41
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K31/025
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.