US3501990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized system for coupling and unification in an electric pipe organ
Assignee: GEORGE L GARBER
•
Filing: 1968-02-21
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Granted: 1970-03-24
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Expires: 1988-02-21
Abstract
No abstract record available.
Inventors
- 👤 Louis P Jappe
- 👤 George L Garber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:38
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/36; G10H1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3138052A
Cited
US3379085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |