US3023406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical encoder
Assignee: BALDWIN PIANO Co
•
Filing: 1957-04-29
•
Granted: 1962-02-27
•
Expires: 1977-04-29
Abstract
No abstract record available.
Inventors
- 👤 Edward M Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:53
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/28; H03M1/30; H03M1/303; H03M1/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2582850A
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US2575342A
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US2686632A
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US2679644A
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US2714204A
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US2651728A
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US2655609A
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US2778978A
Cited
US2790088A
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US2750584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |