US3280686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piano action
Assignee: Wurlitzer Co
•
Filing: 1959-07-20
•
Granted: 1966-10-25
•
Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Clifford W Andersen
- 👤 Charles S Corey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:38
CPC Classifications
G; G10; G10C; G10C3/00; G10C3/16; G10C3/161; G10C3/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN A PIANO ACTION, THE COMBINATION COMPRISING: A PIANO KEY; A KEYFORK DRIVEN INTO THE VERTICAL END FACE OF SAID KEY; A GROMMET ADAPTED TO ENGAGE SAID KEYFORK; A SCREW; AND A STICKER SECURED TO SAID KEYFORK BY SAID SCREW AND SAID GROMMET.
Claim 2
Dependent Claim
43 words
IN A PIANO ACTION, THE COMBINATION COMPRISING: A PIANO KEY; A KEYFORK DRIVEN INTO THE VERTICAL END FACE OF SAID KEY; A GROMMET ADAPTED TO ENGAGE SAID KEYFORK; A SCREW; AND A STICKER SECURED TO SAID KEYFORK BY SAID SCREW AND SAID GROMMET.
References Cited (Backward Citations)
US235370A
Cited
US2061154A
Cited
US2156963A
Cited
US2260348A
Cited
US2324037A
Cited
US2548890A
Cited
US2761345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |