Patent US3042890A successfully refreshed from Google Patents.
US3042890A
Expired / Lapsed
US
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Plug-in low-impedance bus duct
Assignee: Westinghouse Electric Corp
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Filing: 1958-10-30
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Granted: 1962-07-03
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Expires: 1978-10-30
Abstract
No abstract record available.
Inventors
- 👤 Dennis H Gamble
- 👤 Charles L Weimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:07
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1913552A
Cited
US2261857A
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US2251403A
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US2322799A
Cited
US2576774A
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US2495526A
Cited
US2906811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |