Patent US3268877A successfully refreshed from Google Patents.
US3268877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating magnetic transducing head
Assignee: —
•
Filing: 1954-05-26
•
Granted: 1966-08-23
•
Expires: 1974-05-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:30
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/187; G11B5/1871; G11B5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN THE COMBINATION OF A TRANSDUCER UNIT WITH AN INTELLIGENCE STORAGE UNIT HAVING A MOVING SURFACE WHEREIN THE EFFICIENCY OF INTELLIGENCE TRANSFER IS DEPENDENT UPON THE SPACING THEREBETWEEN, MEANS FOR PROVIDING A CONSTANT SPACING BETWEEN SAID UNITS COMPRISING; A SUPPORT, ONE OF SAID UNITS BEING RECIPROCABLY MOUNTED ON SAID SUPPORT, A FIRST MEANS RESPONSIVE TO FLUID PRESSURE CONNECTED TO SAID ONE UNIT FOR URGING SAID UNITS TOGETHER WHEN FLUID PRESSURE IS APPLIED, A SECOND MEANS RESPONSIVE TO FLUID PRESSURE CARREID BY SAID TRANSDUCER UNIT FOR URGING SAID UNITS APART WHEN FLUID PRESSURE IS APPLIED, AND MEANS
Claim 2
Dependent Claim
96 words
IN THE COMBINATION OF A TRANSDUCER UNIT WITH AN INTELLIGENCE STORAGE UNIT HAVING A MOVING SURFACE WHEREIN THE EFFICIENCY OF INTELLIGENCE TRANSFER IS DEPENDENT UPON THE SPACING THEREBETWEEN, MEANS FOR PROVIDING A CONSTANT SPACING BETWEEN SAID UNITS COMPRISING; A SUPPORT, ONE OF SAID UNITS BEING RECIPROCABLY MOUNTED ON SAID SUPPORT, A FIRST MEANS RESPONSIVE TO FLUID PRESSURE CONNECTED TO SAID ONE UNIT FOR URGING SAID UNITS TOGETHER WHEN FLUID PRESSURE IS APPLIED, A SECOND MEANS RESPONSIVE TO FLUID PRESSURE CARREID BY SAID TRANSDUCER UNIT FOR URGING SAID UNITS APART WHEN FLUID PRESSURE IS APPLIED, AND MEANS
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |