Patent DE2214424A1 successfully refreshed from Google Patents.
US3160875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic encoder
Assignee: Unisys Corp
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Filing: 1962-08-01
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Granted: 1964-12-08
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Expires: 1982-08-01
Abstract
No abstract record available.
Inventors
- 👤 David W Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H04L25/0264; H04L25/0266; H04L25/0268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
APPARATUS FOR CONVERTING INFORMATION FROM A KEYBOARD INTO A DIGITAL CODE, SAID APPARATUS COMPRISING A KEYBOARD HAVING A PLURALITY OF INDIVIDUALLY OPERABLE KEYS EACH OF WHICH REPRESENTS A UNIQUE ITEM OF INFORMATION, A MAGNETIC CORE POSITIONED ADJACENT EACH OF SAID KEYS, EACH OF SAID CORES HAVING AN AIR GAP, MAGNETIC MEANS MOUNTED ON SAID KEYS TO BE MOVED THEREWITH AND ARRANGED TO CLOSE THE AIR GAP, AND THUS COMPLETE THE MAGNETIC CIRCUIT, WITHIN THE CORE ADJACENT THE OPERATED KEY WHEN THE KEY IS OPER-
Claim 2
Dependent Claim
84 words
APPARATUS FOR CONVERTING INFORMATION FROM A KEYBOARD INTO A DIGITAL CODE, SAID APPARATUS COMPRISING A KEYBOARD HAVING A PLURALITY OF INDIVIDUALLY OPERABLE KEYS EACH OF WHICH REPRESENTS A UNIQUE ITEM OF INFORMATION, A MAGNETIC CORE POSITIONED ADJACENT EACH OF SAID KEYS, EACH OF SAID CORES HAVING AN AIR GAP, MAGNETIC MEANS MOUNTED ON SAID KEYS TO BE MOVED THEREWITH AND ARRANGED TO CLOSE THE AIR GAP, AND THUS COMPLETE THE MAGNETIC CIRCUIT, WITHIN THE CORE ADJACENT THE OPERATED KEY WHEN THE KEY IS OPER-
References Cited (Backward Citations)
US2997703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |