Patent US2763768A successfully refreshed from Google Patents.
US2763768A
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Welded joint and method and apparatus for producing same
Assignee: FKI Industries Inc
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Filing: 1953-04-28
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Granted: 1956-09-18
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Expires: 1973-04-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Coffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:20
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/02; B21; B21L; B21L11/00; B21L11/14; B21L3/00; B21L3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1038604A
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US915249A
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US984719A
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US1022712A
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US1510197A
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FR614746A
Cited
DE479785C
Cited
US1674109A
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US2108077A
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US2265943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |