US2922993A
Expired / Lapsed
US
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Assignee: Westinghouse Electric Corp
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Filing: 1958-02-05
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Granted: 1960-01-26
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Expires: 1978-02-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Edgar A Sack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:03
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; H05B33/145; G; G09; G09F; G09F13/00; G09F13/20; G09F9/00; G09F9/30; G09F9/302; G09F9/33; G09G; G09G3/00; G09G3/04; G09G3/06; G09G3/12; H05B33/26; H05B44/00; Y; Y02; Y02B; Y02B20/00; Y02B20/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2290261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |