Patent AT20476B successfully refreshed from Google Patents.
AT20476B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Circuit for AC telegraphs.
Assignee: Harry O Rugh
•
Filing: 1904-01-04
•
Granted: 1905-06-26
•
Expires: 1924-01-04
Abstract
No abstract record available.
Inventors
- 👤 Harry O Rugh
Bibliographic Details
Application Number
—
Jurisdiction
AT
Data Source
google_patents
Last Synchronized
2026-11-04 18:31
CPC Classifications
—
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.