US2486281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc cutting of metal and electrode therefor
Assignee: Valley Mould & Iron Corp
•
Filing: 1948-12-22
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Granted: 1949-10-25
•
Expires: 1968-12-22
Abstract
No abstract record available.
Inventors
- 👤 Curtis R Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:05
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0211; B23K35/0216; B23K9/00; B23K9/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1556325A
Cited
US1738246A
Cited
US2059236A
Cited
US2077397A
Cited
US2284351A
Cited
US2411522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |