Patent US3239603A successfully refreshed from Google Patents.
US3239603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic reproducing system
Assignee: Sony Corp
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Filing: 1962-09-19
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Granted: 1966-03-08
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Expires: 1982-09-19
Abstract
No abstract record available.
Inventors
- 👤 Kihara Nobutoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:11
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/911; H04N5/78; H04N5/782; H04N5/7824; H04N5/7826
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A REPRODUCING SYSTEM COMPRISING SCANNING MEANS FOR PRODUCING A PLURALITY OF TRAINS OF ELECTRIC SIGNALS PARTIALLY OVERLAPPING IN TIME FROM CORRESPONDING SIGNALS RECORDED ON RECORD MEDIUM, MEANS FOR AUTOMATICALLY ALWAYS MAKING THE AMPLITUDE LEVEL OF ONE OF THE TRAINS OF SIGNALS SUBSTANTIALLY DIFFERENT FROM THAT OF ANOTHER OF SAID TRAINS OF SIGNALS, AND MEANS FOR AUTOMATICALLY COMPOSING A COMPOSITE TRAIN OF SIGNALS FROM THE TRAINS OF SIGNALS OF RESPECTIVE DIFFERENT AMPLITUDE LEVELS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |