← Back to Patent Explorer
US3061774A Expired / Lapsed US ⏱️ 0.0 years remaining

Electromagnetic metal detecting apparatus

Assignee: Honeywell Inc
•
Filing: 1959-02-18
•
Granted: 1962-10-30
•
Expires: 1979-02-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 John T Ryan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 10:40
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/10; G01V3/104; G01V3/105

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US2057835A Cited
US2033654A Cited
GB484664A Cited
US2240184A Cited
US2418686A Cited
US2549567A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-10-29 1966-04-30 1966-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-10-29 1970-04-30 1970-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-10-29 1974-04-30 1974-10-30 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag