← Back to Patent Explorer
CH307775A Expired / Lapsed CH ⏱️ 0.0 years remaining

Process for the production of semiconducting, crystalline layers.

Assignee: Ericsson Telefon Ab L M
•
Filing: 1952-09-26
•
Granted: —
•
Expires: 1972-09-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Telefonaktiebolaget L Ericsson

Bibliographic Details

Application Number —
Jurisdiction CH
Data Source google_patents
Last Synchronized 2026-10-23 14:37
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2923; H10P14/22; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; H10P14/38

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag