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Patent US2680056A successfully refreshed from Google Patents.
US2680056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible printer bar for electrical recorders
Assignee: RCA Corp
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Filing: 1950-06-20
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Granted: 1954-06-01
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Expires: 1970-06-20
Abstract
No abstract record available.
Inventors
- 👤 Roger G Olden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:46
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1794700A
Cited
US2223680A
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US2380467A
Cited
US2415229A
Cited
US2413962A
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US2495271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |