← Back to Patent Explorer
US3227028A Expired / Lapsed US ⏱️ 0.0 years remaining

Capo or pitch changing device for fifth string of a banjo

Assignee: Individual
•
Filing: 1964-09-04
•
Granted: 1966-01-04
•
Expires: 1984-09-04
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Gordon M Simms

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:40
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 87 words
A DEVICE FOR USE IN CHANGING THE PITCH OF A SINGLE STRING OF A STRINGED INSTRUMENT HAVING A FRETBOARD, COMPRISING A BODY MEMBER WITH A KNOB HANDLE AT ONE END AND A FINGER-LIKE EXTENSION ON THE OPPOSITE END, THE EXTENSION BEING PROVIDED WITH A GROOVE TO RECEIVE A SINGLE STRING, THE DEVICE BEING REMOVABLY WEDGED IN POSITION BETWEEN THE FRETBOARD AND THE STRING BY PRESSURE OF THE STRING IN THE GROOVE, WHEREBY THE STRING IS ELEVATED TO A POSITION ABOVE THE FRETBOARD TO VARY THE PITCH THEREOF.
Claim 2
Independent Claim 87 words
A DEVICE FOR USE IN CHANGING THE PITCH OF A SINGLE STRING OF A STRINGED INSTRUMENT HAVING A FRETBOARD, COMPRISING A BODY MEMBER WITH A KNOB HANDLE AT ONE END AND A FINGER-LIKE EXTENSION ON THE OPPOSITE END, THE EXTENSION BEING PROVIDED WITH A GROOVE TO RECEIVE A SINGLE STRING, THE DEVICE BEING REMOVABLY WEDGED IN POSITION BETWEEN THE FRETBOARD AND THE STRING BY PRESSURE OF THE STRING IN THE GROOVE, WHEREBY THE STRING IS ELEVATED TO A POSITION ABOVE THE FRETBOARD TO VARY THE PITCH THEREOF.

References Cited (Backward Citations)

US279173A Cited
US370172A Cited
US394530A Cited
US416057A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-01-03 1969-07-05 1970-01-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-01-03 1973-07-05 1974-01-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-01-03 1977-07-05 1978-01-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag