← Back to Patent Explorer
US2863614A Expired / Lapsed US ⏱️ 0.0 years remaining

Chart spool

Assignee: Individual
•
Filing: 1956-05-22
•
Granted: 1958-12-09
•
Expires: 1976-05-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Eugene W Dove

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 08:32
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/06; A; A47; A47B; A47B97/00; A47B97/02

Claims Analysis

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

References Cited (Backward Citations)

US385026A Cited
US658612A Cited
US2024178A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-12-08 1962-06-09 1962-12-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-12-08 1966-06-09 1966-12-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-12-08 1970-06-09 1970-12-09 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag