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US3385929A
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US
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Support for a high fidelity stereophonic system
Assignee: CLAIRTONE SOUND CORP Ltd
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Filing: 1964-07-23
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Granted: 1968-05-28
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Expires: 1984-07-23
Abstract
No abstract record available.
Inventors
- 👤 Magyar John
- 👤 Spencer Richard Houghton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:04
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/42; F16M11/02; F16M11/04; F16M11/06; F16M11/08; F16M11/20; F16M11/22; H; H04; H04R; H04R1/00; H04R1/02; H04R1/026; H04R5/00; H04R5/02; F16M2200/00; F16M2200/04; F16M2200/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |