Patent US2967447A successfully refreshed from Google Patents.
US2967447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for translating electrical musical tone signals into sound
Assignee: Hammond Organ Co
•
Filing: 1957-03-06
•
Granted: 1961-01-10
•
Expires: 1977-03-06
Abstract
No abstract record available.
Inventors
- 👤 John M Hanert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:16
CPC Classifications
G; G10; G10K; G10K15/00; G10K15/08; G10K15/10; Y; Y10; Y10S; Y10S84/00; Y10S84/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1642040A
Cited
US1877317A
Cited
US1947621A
Cited
US2017153A
Cited
US2105318A
Cited
US2230836A
Cited
US2437445A
Cited
DE928351C
Cited
US2819342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |