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Patent US2430565A successfully refreshed from Google Patents.
US2430565A
Expired / Lapsed
US
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Positive sound track in multilayer film
Assignee: Eastman Kodak Co
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Filing: 1945-12-29
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Granted: 1947-11-11
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Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Charles H Guell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:23
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; G03C7/24; Y; Y10; Y10S; Y10S430/00; Y10S430/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |