Patent US3011256A successfully refreshed from Google Patents.
US3011256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluxless brazing of steel
Assignee: Lithium Corp of America Inc
•
Filing: 1957-03-26
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Granted: 1961-12-05
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Expires: 1977-03-26
Abstract
No abstract record available.
Inventors
- 👤 Bredzs Nikolajs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:20
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2196305A
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US2196307A
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US2340362A
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GB676291A
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US2554233A
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US2534643A
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US2793115A
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US2768893A
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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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |