US3124662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pmxnt
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:32
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B5/00; G11B5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A MAGNETIC REPRODUCER FOR REPRODUCING A SUBSTANTIALLY SINUSOIDAL SIGNAL FROM A SIGNAL RECORD EXTENDING ALONG A TRAVELING RECORD MEDIUM IN THE DIRECTION OF TRAVEL THEREOF, COMPRISING: A PLURALITY OF REPRODUCER HEADS ASSOCIATED WITH SAID RECORD MEDIUM AND SPACED FROM ONE ANOTHER IN THE DIRECTION OF TRAVEL OF THE MEDIUM BY ANY MULTIPLE, INCLUDING UNITY, OF A FULL WAVE LENGTH DISTANCE ALONG THE MEDIUM, AND MEANS CONNECTING SAID REPRODUCER HEADS IN PHASE.
Claim 2
Dependent Claim
71 words
A MAGNETIC REPRODUCER FOR REPRODUCING A SUBSTANTIALLY SINUSOIDAL SIGNAL FROM A SIGNAL RECORD EXTENDING ALONG A TRAVELING RECORD MEDIUM IN THE DIRECTION OF TRAVEL THEREOF, COMPRISING: A PLURALITY OF REPRODUCER HEADS ASSOCIATED WITH SAID RECORD MEDIUM AND SPACED FROM ONE ANOTHER IN THE DIRECTION OF TRAVEL OF THE MEDIUM BY ANY MULTIPLE, INCLUDING UNITY, OF A FULL WAVE LENGTH DISTANCE ALONG THE MEDIUM, AND MEANS CONNECTING SAID REPRODUCER HEADS IN PHASE.
References Cited (Backward Citations)
US2709204A
Cited
US2628346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |