Patent US4316391A successfully refreshed from Google Patents.
US2528040A
Expired / Lapsed
US
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Method of brazing and welding
Assignee: Individual
•
Filing: 1944-10-28
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Granted: 1950-10-31
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Expires: 1964-10-28
Abstract
No abstract record available.
Inventors
- 👤 Logan R Crouch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:05
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1324980A
Cited
US1146664A
Cited
US1680073A
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US1856072A
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US1883439A
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US2040140A
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US2050867A
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US2126519A
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US2192904A
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US2268343A
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US2271652A
Cited
US2226496A
Cited
US2360359A
Cited
US2361636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |