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Patent US2619873A successfully refreshed from Google Patents.
US2619873A
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US
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Motion-picture film recording apparatus
Assignee: Zenith Electronics LLC
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Filing: 1949-08-24
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Granted: 1952-12-02
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Expires: 1969-08-24
Abstract
No abstract record available.
Inventors
- 👤 Ellett Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:38
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1494795A
Cited
DE385987C
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US1963438A
Cited
US2146135A
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US2233441A
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US2365212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |