Patent US3030495A successfully refreshed from Google Patents.
US3030495A
Expired / Lapsed
US
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Initiation and maintenance of power arcs
Assignee: Airco Inc
•
Filing: 1959-04-27
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Granted: 1962-04-17
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Nelson E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:10
CPC Classifications
H; H01; H01J; H01J40/00; H01J40/02; H01J40/04; H01J40/06; B; B23; B23K; B23K9/00; B23K9/06; B23K9/067; B23K9/0672; H01J9/00; H01J9/02; H01J9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179108A
Cited
US2329977A
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US2475835A
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US2405673A
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US2685632A
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US2867730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |