SE411139B
Expired / Lapsed
SE
⏱️ 0.0 years remaining
DRILLING DEVICE
Assignee: Sandvik Ab
•
Filing: 1977-04-29
•
Granted: —
•
Expires: 1997-04-29
Abstract
No abstract record available.
Inventors
- 👤 H A Wiredal
Bibliographic Details
Application Number
—
Jurisdiction
SE
Data Source
google_patents
Last Synchronized
2026-10-28 10:57
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/26; E21B10/265; E21B10/36; E21B10/38; E21B10/40; E21B10/64; E21B10/66; E21B7/00; E21B7/20
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.