← Back to Patent Explorer
US2519306A Expired / Lapsed US ⏱️ 0.0 years remaining

Toy piano

Assignee: Individual
•
Filing: 1947-10-02
•
Granted: 1950-08-15
•
Expires: 1967-10-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Zimmerman Harry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 02:31
CPC Classifications
G; G10; G10D; G10D13/00; G10D13/01; G10D13/08; G10D13/09

Claims Analysis

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

References Cited (Backward Citations)

US632029A Cited
US658284A Cited
US769129A Cited
US1791720A Cited
US2279144A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1953-08-14 1954-02-13 1954-08-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1957-08-14 1958-02-13 1958-08-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1961-08-14 1962-02-13 1962-08-15 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag