US3215019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical banjo head tighteners
Assignee: Individual
•
Filing: 1963-07-12
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Granted: 1965-11-02
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 John A O Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:13
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A MUSICAL INSTRUMENT, AN ANNULAR CASING COMPRISING A SIDEWALL HAVING UPPER AND LOWER EDGES, A SPIDER EXTENDING ACROSS THE CASING AND SECURIED TO THE SIDEWALL BELOW ITS UPPER EDGE, SAID SPIDER HAVING A CENTER PIECE, A TONE RING SECURED TO THE SIDEWALL AT THE UPPER EDGE OF THE SIDEWALL, SAID TONE RING HAVING AN UPSTANDING ANNULAR BEAD, A VELLUM LARGER IN DIAMETER THAN SAID BEAD AND STRETCHED THEREACROSS, SAID VELLUM HAVING A PENDANT PERIPHERAL PORTION EQUALLY CIRCUMFERENTIALLY SPACED CORDS, MEANS CONNECTING THE CORDS AT ONE END OF SAID PERIPHERAL PORTION, AND CORD SHORTENING MEANS MOUNTED ON THE CENTER PIECE OF THE SPIDER AND OPERATIVELY CONNECTED TO THE OTHER ENDS OF THE CORDS.
Claim 2
Dependent Claim
113 words
IN A MUSICAL INSTRUMENT, AN ANNULAR CASING COMPRISING A SIDEWALL HAVING UPPER AND LOWER EDGES, A SPIDER EXTENDING ACROSS THE CASING AND SECURIED TO THE SIDEWALL BELOW ITS UPPER EDGE, SAID SPIDER HAVING A CENTER PIECE, A TONE RING SECURED TO THE SIDEWALL AT THE UPPER EDGE OF THE SIDEWALL, SAID TONE RING HAVING AN UPSTANDING ANNULAR BEAD, A VELLUM LARGER IN DIAMETER THAN SAID BEAD AND STRETCHED THEREACROSS, SAID VELLUM HAVING A PENDANT PERIPHERAL PORTION EQUALLY CIRCUMFERENTIALLY SPACED CORDS, MEANS CONNECTING THE CORDS AT ONE END OF SAID PERIPHERAL PORTION, AND CORD SHORTENING MEANS MOUNTED ON THE CENTER PIECE OF THE SPIDER AND OPERATIVELY CONNECTED TO THE OTHER ENDS OF THE CORDS.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |