Patent US1451392A successfully refreshed from Google Patents.
US1451392A
Expired / Lapsed
US
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Electrode for electric-arc cutting or reducing
Assignee: Electric Arc Cutting & Welding
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Filing: 1921-11-15
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Granted: 1923-04-10
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Expires: 1941-11-15
Abstract
No abstract record available.
Inventors
- 👤 Claude J Holslag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:44
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/013; B23K35/00; B23K35/02; B23K35/0211; B23K35/0216
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-04-09 | 1926-10-09 | 1927-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-04-09 | 1930-10-09 | 1931-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-04-09 | 1934-10-09 | 1935-04-10 | $7700.00 | Window Closed / Lapsed |