FR1101876A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to diode circuits
Assignee: AT&T Inc
•
Filing: 1954-04-08
•
Granted: 1955-10-11
•
Expires: 1974-04-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 17:11
CPC Classifications
H; H04; H04Q; H04Q5/00; H04Q5/02; H04Q5/08; H10; H10D; H10D99/00
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.