US2504753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding method and apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1946-01-15
•
Granted: 1950-04-18
•
Expires: 1966-01-15
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Suydam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:37
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; Y; Y10; Y10T; Y10T403/00; Y10T403/47; Y10T403/477; Y10T403/49
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1722195A
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US2370538A
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US2380525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |