US3557445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating slant cores
Assignee: Honeywell Inc
•
Filing: 1968-01-02
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Granted: 1971-01-26
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Expires: 1988-01-02
Abstract
Abstract A DIGITAL MAGNETIC RECORDING CORE STRUCTURE HAVING THE CORE-LEGS "SLANTED" WITH RESPECT TO THE RECORDING FACE THEREOF, THIS STRUCTURE ESPECIALLY LENDING ITSELF TO MANUFACTURING MATCHED CORE SETS FROM A COMMON PROFILE, YET DOING SO WITH IMPROVED CONVENIENCE AND EFFICIENCY, IN A PREFERRED EMBODIMENT, THIS ARRANGEMENT (AND METHOD) BEING ESPECIALLY APT FOR FABRICATING ONE OR A SET OF TUNNEL ERASE CORES.
Inventors
- 👤 Richard I Mizrahi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:48
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/265; G11B5/133; G11B5/187; G11B5/193; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49048
Claims Analysis
Total Claims: 0
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |