US2985743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding apparatus and method
Assignee: Individual
•
Filing: 1957-11-19
•
Granted: 1961-05-23
•
Expires: 1977-11-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Mckeen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:37
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; B23K11/0093
Claims Analysis
Total Claims: 0
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |