Patent US3273099A successfully refreshed from Google Patents.
US3273099A
Expired / Lapsed
US
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Transformer
Assignee: Kiekhaefer Corp
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Filing: 1964-06-15
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Granted: 1966-09-13
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Floyd M Minks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:20
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A TRANSFORMER STRUCTURE COMPRISING, A MAGNETIC CORE UNIT HAVING A WINDING OPENING AND AN ADJACENT MAGNETIC WINDING PORTION, A SECONDARY WINDING INSULATOR OF A HIGH VOLTAGE INSULATING MATERIAL ENCIRCLING THE CORE UNIT WINDING PORTION AT THE OPENING AND HAVING A SECONDARY WINDING GROOVE WITHIN THE INSULATOR AND OPENING GENERALLY OUTWARDLY OF THE WINDING PORTION, A SECONDARY WINDING WITHIN THE GROOVE AND HAVING A HIGH VOLTAGE TERMINAL AT THE BASE OF THE GROOVE, AND A PRIMARY WINDING MEANS ENCIRCLING A PORTION OF THE CORE UNIT IMMEDIATELY ADJACENT AT LEAST ONE SIDE OF THE WINDING INSULATOR.
Claim 2
Dependent Claim
94 words
A TRANSFORMER STRUCTURE COMPRISING, A MAGNETIC CORE UNIT HAVING A WINDING OPENING AND AN ADJACENT MAGNETIC WINDING PORTION, A SECONDARY WINDING INSULATOR OF A HIGH VOLTAGE INSULATING MATERIAL ENCIRCLING THE CORE UNIT WINDING PORTION AT THE OPENING AND HAVING A SECONDARY WINDING GROOVE WITHIN THE INSULATOR AND OPENING GENERALLY OUTWARDLY OF THE WINDING PORTION, A SECONDARY WINDING WITHIN THE GROOVE AND HAVING A HIGH VOLTAGE TERMINAL AT THE BASE OF THE GROOVE, AND A PRIMARY WINDING MEANS ENCIRCLING A PORTION OF THE CORE UNIT IMMEDIATELY ADJACENT AT LEAST ONE SIDE OF THE WINDING 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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |