US2654129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for welding
Assignee: Erico International Corp
•
Filing: 1949-05-07
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Granted: 1953-10-06
•
Expires: 1969-05-07
Abstract
No abstract record available.
Inventors
- 👤 Edward B Neff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:30
CPC Classifications
B; B23; B23K; B23K23/00; B23K2101/00; B23K2101/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB616239A
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US1581455A
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US2262755A
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US2277014A
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US2276823A
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US2401048A
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US2318604A
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US2368295A
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US2403065A
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US2430188A
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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) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |