US3049965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of modifying a recorded sound track and apparatus for producing a modified sound track
Assignee: INSTANT SYNCHRONIZATION Corp
•
Filing: 1959-01-08
•
Granted: 1962-08-21
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Expires: 1979-01-08
Abstract
No abstract record available.
Inventors
- 👤 Gunst Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:15
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/86; G03; G03B; G03B31/00; G03B31/02; G11B7/00; G11B7/28
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |