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 11:17
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)
US1145798A
Cited
US1749924A
Cited
US2362667A
Cited
GB688554A
Cited
US2612566A
Cited
US2737646A
Cited
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 |