Patent US2584072A successfully refreshed from Google Patents.
US2584072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backup device for welding, brazing, or soldering operation
Assignee: Individual
•
Filing: 1947-11-29
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Granted: 1952-01-29
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Expires: 1967-11-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert E White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:10
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1332937A
Cited
US1481906A
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US1902051A
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US1901634A
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US2254314A
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US2357170A
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US2289458A
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US2256634A
Cited
US2314788A
Cited
US2393198A
Cited
US2379136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |