US2442017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding control system
Assignee: Westinghouse Electric Corp
•
Filing: 1945-12-12
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Granted: 1948-05-25
•
Expires: 1965-12-12
Abstract
No abstract record available.
Inventors
- 👤 Robert W Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:21
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/06; B23K9/067; B23K9/0671
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1746204A
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US1701372A
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GB394773A
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US2145010A
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GB472363A
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US2152785A
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US2173446A
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US2253207A
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US2260510A
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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) | 1951-05-25 | 1951-11-24 | 1952-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-25 | 1955-11-24 | 1956-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-25 | 1959-11-24 | 1960-05-25 | $7700.00 | Window Closed / Lapsed |