← Back to Patent Explorer
US2997629A Expired / Lapsed US ⏱️ 0.0 years remaining

Switchboard

Assignee: Westinghouse Electric Corp
•
Filing: 1956-12-24
•
Granted: 1961-08-22
•
Expires: 1976-12-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Jerome C Wolski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 14:18
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/30; H02B1/32; H02B1/34

Claims Analysis

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

References Cited (Backward Citations)

US2212191A Cited
US2319415A Cited
US2526901A Cited
US2542853A Cited
US2623917A Cited
US2645743A Cited
US2659843A Cited
US2796559A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-08-21 1965-02-20 1965-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-08-21 1969-02-20 1969-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-08-21 1973-02-20 1973-08-22 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag