Patent US2846561A successfully refreshed from Google Patents.
US2846561A
Expired / Lapsed
US
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Method of and apparatus for forming u-shaped members and welding the same to metallic parts
Assignee: Individual
•
Filing: 1957-02-01
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Granted: 1958-08-05
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Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Albert F Pityo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:19
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; B23K11/004; B23K11/0046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1314816A
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US2734119A
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US1787128A
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US2106272A
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US2263294A
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US2477894A
Cited
US2685017A
Cited
US2684421A
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US2779858A
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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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |