Patent US3170031A successfully refreshed from Google Patents.
US3170031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording system with provision for fast or slow reproduction
Assignee: Individual
•
Filing: 1963-12-27
•
Granted: 1965-02-16
•
Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Okamura Shiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:45
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; H04N5/783; H04N7/00; H04N7/01; H04N7/0105; H04N7/011
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
IN A SYSTEM FOR RECORDING AND REPRODUCING PERIODICAL SIGNALS COMPRISING A SERIES OF RECURRING PERIODS EACH OF WHICH CONTAINS A PLURALITY OF RECURRING SUB-PESRIODS, THE IMPROVEMENT COMPRISING MEANS FOR RECEIVING SAID PERIODICAL SIGNALS, MEANS FOR RECORDING SAID PERIODICAL SIGNALS ON A MAGNETIC STORAGE SURFACE WITH SEQUENTIAL PERIODS OF SAID SIGNAL BEING RECORDED ON ADJACENT TRACKS ACROSS SAID MAGNETIC STORAGE SURFACE, AND REPRODUCING MEANS ADAPTED TO MOVE IN A PATH HAVING A LATERAL COMPONENT OF VELOCITY ACROSS SAID RECORDED TRACKS TO SPEED UP OR RETARD THE REPRODUCED SIGNALS WITH RESPECT TO THE RECORDED SIGNALS.
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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |