Patent US3211953A successfully refreshed from Google Patents.
Patent US3472982A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3472982A Expired / Lapsed US ⏱️ 0.0 years remaining

Arc chute

Assignee: Schneider Electric USA Inc
•
Filing: 1966-07-29
•
Granted: 1969-10-14
•
Expires: 1986-07-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Harold A Duvall
  • 👤 Albert J Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 12:39
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/44; H01H9/446; H01H9/34; H01H9/36

Claims Analysis

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

References Cited (Backward Citations)

US2822448A Cited
US3374332A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-10-13 1973-04-14 1973-10-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-10-13 1977-04-14 1977-10-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-10-13 1981-04-14 1981-10-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag