US2965740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for welding plate edges
Assignee: United States Steel Corp
•
Filing: 1958-04-10
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Granted: 1960-12-20
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Expires: 1978-04-10
Abstract
No abstract record available.
Inventors
- 👤 Howard M Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:21
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/01; B23K13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1365199A
Cited
US2647982A
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US2673274A
Cited
GB716378A
Cited
US2692322A
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US2852649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |