US3227457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording and reproducing system
Assignee: Sony Corp
•
Filing: 1961-07-06
•
Granted: 1966-01-04
•
Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 Tada Masanobu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:31
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A MAGNETIC RECORDING AND REPRODUCING SYSTEM FOR COOPERATION WITH A MAGNETIC SHEET TRAVELING WITH A PREDETERMINED SPEED, COMPRISING TWO MAGNETIC HEADS, MEANS FOR MOVING THE HEADS WITH A SUBSTANTIALLY RECIPROCATING MOTION TRANSVERSELY TO THE DIRECTION OF MOVEMENT OF THE SHEET AND THROUGH RESPECTIVE PATHS WHICH ARE OFFSET IN THE DIRECTION OF MOVEMENT OF THE SHEET WITH THE HEADS MOVING IN STRAIGHT LINES DURING AT LEAST A PORTION OF THEIR MOTION, AND MEANS FOR SEQUENTIALLY ACTIVATING SAID HEADS TO SCAN THE AREA OF THE SHEET AS THE SHEET TRAVELS SUCCESSIVELY ACROSS THE PATHS OF SAID HEADS WITH THE PATHS OF THE HEADS BEING STRAIGHT DURING ACTIVATION THEREOF.
Claim 2
Dependent Claim
106 words
A MAGNETIC RECORDING AND REPRODUCING SYSTEM FOR COOPERATION WITH A MAGNETIC SHEET TRAVELING WITH A PREDETERMINED SPEED, COMPRISING TWO MAGNETIC HEADS, MEANS FOR MOVING THE HEADS WITH A SUBSTANTIALLY RECIPROCATING MOTION TRANSVERSELY TO THE DIRECTION OF MOVEMENT OF THE SHEET AND THROUGH RESPECTIVE PATHS WHICH ARE OFFSET IN THE DIRECTION OF MOVEMENT OF THE SHEET WITH THE HEADS MOVING IN STRAIGHT LINES DURING AT LEAST A PORTION OF THEIR MOTION, AND MEANS FOR SEQUENTIALLY ACTIVATING SAID HEADS TO SCAN THE AREA OF THE SHEET AS THE SHEET TRAVELS SUCCESSIVELY ACROSS THE PATHS OF SAID HEADS WITH THE PATHS OF THE HEADS BEING STRAIGHT DURING ACTIVATION THEREOF.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |