US3522358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rhythmic interpolators
Assignee: Baldwin Piano and Organ Co
•
Filing: 1967-02-28
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Granted: 1970-07-28
•
Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Donald J Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:33
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/36; G10H1/40; G10H1/42; G10H2220/00; G10H2220/021; G10H2220/081; G10H2230/00; G10H2230/045; G10H2230/251; G10H2230/265; G10H2230/341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE26333E
Cited
US3140336A
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US3243494A
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US3243714A
Cited
US3310688A
Cited
US3383452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |