← Back to Patent Explorer
US2963224A Expired / Lapsed US ⏱️ 0.0 years remaining

Constant response time follow-up system

Assignee: Individual
•
Filing: 1956-04-27
•
Granted: 1960-12-06
•
Expires: 1976-04-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Mcdonough Sidney Lee

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 23:31
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/22; G05; G05D; G05D3/00; G05D3/12; G05D3/121; G05D3/122; G06G7/16; G06G7/163

Claims Analysis

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

References Cited (Backward Citations)

US2525636A Cited
US2497216A Cited
US2671875A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-12-06 1964-06-06 1964-12-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-12-06 1968-06-06 1968-12-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-12-06 1972-06-06 1972-12-06 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag