← Back to Patent Explorer
US913508A Expired / Lapsed US ⏱️ 0.0 years remaining

Attachment for graphophones.

Assignee: Individual
•
Filing: 1908-06-17
•
Granted: 1909-02-23
•
Expires: 1928-06-17
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Hanson C Kelly

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 19:17
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/58; G11B3/5809; G11B3/5818; G11B3/5827; G11B3/5836; Y; Y10; Y10S; Y10S29/00; Y10S29/095

Claims Analysis

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

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1912-02-23 1912-08-24 1913-02-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1916-02-23 1916-08-24 1917-02-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1920-02-23 1920-08-24 1921-02-23 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag