← Back to Patent Explorer
US2440987A Expired / Lapsed US ⏱️ 0.0 years remaining

Float switch

Assignee: AMP Corp
•
Filing: 1945-06-08
•
Granted: 1948-05-04
•
Expires: 1965-06-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Parke H Thompson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 01:39
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/02; G; G01; G01F; G01F23/00; G01F23/30; G01F23/64

Claims Analysis

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

References Cited (Backward Citations)

US355815A Cited
US2116415A Cited
US2204161A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1951-05-04 1951-11-03 1952-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1955-05-04 1955-11-03 1956-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1959-05-04 1959-11-03 1960-05-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag