Patent US4358025A successfully refreshed from Google Patents.
Patent US3521023A successfully refreshed from Google Patents.
US3521023A
Expired / Lapsed
US
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Plasma torch
Assignee: ADVANCED ROBOTICS Corp
•
Filing: 1968-07-03
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Granted: 1970-07-21
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Expires: 1988-07-03
Abstract
No abstract record available.
Inventors
- 👤 William J Dahlman
- 👤 Lee F Budds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:03
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34; B; B23; B23K; B23K10/00; B23K10/02; H05H1/3473
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2484959A
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US2425183A
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US2765144A
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US2798145A
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US2799769A
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US2872566A
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US3174027A
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US3309492A
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US3413436A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |