← Back to Patent Explorer
US2412293A Expired / Lapsed US ⏱️ 0.0 years remaining

Field switch

Assignee: ITE Circuit Breaker Co
•
Filing: 1942-06-02
•
Granted: 1946-12-10
•
Expires: 1962-06-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Schymik Walter Haines

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 00:53
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/26; H02; H02B; H02B11/00; H02B11/12; H02B11/127; H02B11/133

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

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1949-12-09 1950-06-10 1950-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1953-12-09 1954-06-10 1954-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1957-12-09 1958-06-10 1958-12-10 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag