US3350973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Music chord finder device
Assignee: Individual
•
Filing: 1965-02-05
•
Granted: 1967-11-07
•
Expires: 1985-02-05
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Weis
- 👤 Anne B Weis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:59
CPC Classifications
G; G10; G10G; G10G1/00; G10G1/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US201030A
Cited
US257790A
Cited
USRE24195E
Cited
US741017A
Cited
US777793A
Cited
US765937A
Cited
GB190603556A
Cited
US1017045A
Cited
US2938421A
Cited
US3101023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |