FR995115A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Electronic tube with accumulator effect
Assignee: Compteurs Schlumberger SA
•
Filing: 1949-07-21
•
Granted: 1951-11-28
•
Expires: 1969-07-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 22:37
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12
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.