Patent CH281033A successfully refreshed from Google Patents.
CH281033A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Device for making corner connections of frames.
Assignee: Koller Ernst
•
Filing: 1950-03-09
•
Granted: —
•
Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Koller Ernst
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-03 22:49
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/74; B21D53/745; E; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/976; E06B3/9765
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.