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US2821664A
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Grounding device to prevent stray currents in shaft bearings
Assignee: General Electric Co
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Filing: 1955-10-28
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Granted: 1958-01-28
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Expires: 1975-10-28
Abstract
No abstract record available.
Inventors
- 👤 Firm L Weaver
- 👤 Jr Vladimir T Dimitroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:02
CPC Classifications
H; H02; H02K; H02K11/00; H02K11/40; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2108530A
Cited
US2256118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |