← Back to Patent Explorer
FR1099467A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements to purely digital electronic calculating machines

Assignee: NAT RES DEV
•
Filing: 1953-12-22
•
Granted: 1955-09-06
•
Expires: 1973-12-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Hubert John Crawley
  • 👤 Christopher Strachey

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-22 19:23
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/34; G06F9/355

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