Patent CH306940A successfully refreshed from Google Patents.
CH306940A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Electric resistance heating element.
Assignee: Gmbh W C Heraeus
•
Filing: 1952-08-14
•
Granted: —
•
Expires: 1972-08-14
Abstract
No abstract record available.
Inventors
- 👤 Gmbh W C Heraeus
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-05 16:42
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/16
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.