Patent US2842610A successfully refreshed from Google Patents.
US2842610A
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US
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Assignee: CROSFIELD J F Ltd
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Filing: 1954-08-23
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Granted: 1958-07-08
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Expires: 1974-08-23
Abstract
No abstract record available.
Inventors
- 👤 Crosfield John Fothergill
- 👤 Allen Gordon Stanley James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:18
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/401; H04N1/04; H04N1/207; H04N1/46; H04N1/56; H04N1/60; H04N1/6016
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) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |