Patent US3098990A successfully refreshed from Google Patents.
US3098990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision voltage ratio transformer
Assignee: —
•
Filing: —
•
Granted: 1963-07-23
•
Expires: 1980-07-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:27
CPC Classifications
H; H01; H01F; H01F30/00; H01F30/06; H01F30/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN INDUCTIVE DEVICE COMPRISING A WINDING, A FIELD MEMBER OF MAGNETIC MATERIAL ENCLOSING SAID WINDING AND COMPLETING ITS MAGNETIC CIRCUIT, SAID FIELD MEMBER INCLUDING AN INNER CORE MEMBER AND FORMING AN ANNULAR ENCLOSURE FOR SAID WINDING AND HAVING APERTURES SPACED AROUND THE SAID FIELD MEMBER, SAID WINDING HAVING A TAP EXTENDING THROUGH ONE OF SAID APERTURES SO THAT A FRACTIONAL PART OF THE TOTAL FLUX OF SAID FIELD MEMBER IS INTERLINKED BY SAID TAP.
Claim 2
Dependent Claim
74 words
AN INDUCTIVE DEVICE COMPRISING A WINDING, A FIELD MEMBER OF MAGNETIC MATERIAL ENCLOSING SAID WINDING AND COMPLETING ITS MAGNETIC CIRCUIT, SAID FIELD MEMBER INCLUDING AN INNER CORE MEMBER AND FORMING AN ANNULAR ENCLOSURE FOR SAID WINDING AND HAVING APERTURES SPACED AROUND THE SAID FIELD MEMBER, SAID WINDING HAVING A TAP EXTENDING THROUGH ONE OF SAID APERTURES SO THAT A FRACTIONAL PART OF THE TOTAL FLUX OF SAID FIELD MEMBER IS INTERLINKED BY SAID TAP.
References Cited (Backward Citations)
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US2343675A
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US2355833A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |