US3233198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed distribution transformer
Assignee: General Electric Co
•
Filing: 1964-08-03
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Granted: 1966-02-01
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Expires: 1984-08-03
Abstract
No abstract record available.
Inventors
- 👤 Roger F Schrader
- 👤 Wilmer H Airgood
- 👤 Gordon C Nonken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:15
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A HERMETICALLY SEALED DISTRIBUTION TRANSFORMER COMPRISING, IN COMBINATION, A RECTANGULAR-SHAPED HOUSING OPEN AT OPPOSITE ENDS, A CORE AND COIL UNIT HAVING HIGH AND LOW VOLTAGE LEADS SECURED WITHIN SAID HOUSING, A PAIR OF COOLING FLANGES OF GREATER EXTENT THAN SAID HOUSING, SAID COOLING FLANGES BEING WELDED TO SAID OPEN OPPOSITE ENDS OF SAID HOUSING TO FORM A HERMETICALLY SEALED ENCLOSURE INCLUDING SAID FLANGES, AT LEAST ONE HIGH VOLTAGE BUSHING AND LOW VOLTAGE BUSHINGS HERMETICALLY SEALED TO SAID ENCLOSURE, SAID BUSHINGS BEING INTERNALLY CONNECTED TO SAID HIGH AND LOW VOLTAGE LEADS, THE INTERIOR OF SAID HERMETICALLY SEALED ENCLOSURE BEING COMPLETELY FILLED WITH A DIELECTRIC COOLING LIQUID.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |