US2785284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1953-07-29
•
Granted: 1957-03-12
•
Expires: 1973-07-29
Abstract
No abstract record available.
Inventors
- 👤 Hubert W Van Ness
- 👤 Edward C Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:18
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2118427A
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US2250202A
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US2254121A
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US2340085A
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US2361229A
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US2597959A
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US2411708A
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US2452070A
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US2542845A
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US2590582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |