US2559276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric musical instrument
Assignee: Individual
•
Filing: 1947-05-09
•
Granted: 1951-07-03
•
Expires: 1967-05-09
Abstract
No abstract record available.
Inventors
- 👤 Rollin E Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:35
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/03; G10H3/06; Y; Y10; Y10S; Y10S84/00; Y10S84/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1678872A
Cited
US1980292A
Cited
US1848222A
Cited
US1991522A
Cited
US1958227A
Cited
US2031764A
Cited
US2169842A
Cited
US2452743A
Cited
US2470148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |