Patent US3479120A successfully refreshed from Google Patents.
US3479120A
Expired / Lapsed
US
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Apparatus for duplicating reelable film
Assignee: CBS Broadcasting Inc
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Filing: 1964-10-05
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Granted: 1969-11-18
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Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Ronald N Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:45
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/16; G03B27/18; G03B27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2091280A
Cited
US2560696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |