US2516037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1948-11-03
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Granted: 1950-07-18
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Expires: 1968-11-03
Abstract
No abstract record available.
Inventors
- 👤 Clifton S Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:37
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/067; B23K9/0672; B23K9/0678; B23K9/16; B23K9/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1533874A
Cited
US1610920A
Cited
US1708003A
Cited
US2395062A
Cited
US2340093A
Cited
US2379777A
Cited
US2437840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |