Patent US3275839A successfully refreshed from Google Patents.
US3275839A
Expired / Lapsed
US
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Parametric device
Assignee: Unisys Corp
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Filing: 1962-07-17
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Granted: 1966-09-27
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Expires: 1982-07-17
Abstract
No abstract record available.
Inventors
- 👤 William J Bartik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:33
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45; H03K3/47; H03F; H03F7/00; H03F7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A PARAMETRIC DEVICE COMPRISING: (A) AN INNER CONDUCTOR PLATED WITH A THIN MAGNETIC FILM IN THE ORDER OF ONE MICRON; (B) AN INSULATOR COVERING SAID PLATED INNER CONDUCTOR; (C) AND AN EXTERNAL BRAIDED CONDUCTOR CO-AXIALLY SURROUNDING SAID INSULATOR.
Claim 2
Dependent Claim
38 words
A PARAMETRIC DEVICE COMPRISING: (A) AN INNER CONDUCTOR PLATED WITH A THIN MAGNETIC FILM IN THE ORDER OF ONE MICRON; (B) AN INSULATOR COVERING SAID PLATED INNER CONDUCTOR; (C) AND AN EXTERNAL BRAIDED CONDUCTOR CO-AXIALLY SURROUNDING SAID INSULATOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |