US2648626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electrolytic coating
Assignee: National Steel Corp
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Filing: 1949-03-10
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Granted: 1953-08-11
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Expires: 1969-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
C; C25; C25D; C25D21/00; C25D21/16; C25D21/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
THE METHOD OF CONTINUOUSLY AND PROGRESSIVELY MANUFACTURING ELECTRO-TINPLATED STRIP COMPRISING THE STEPS OF PASSING STRIP THROUGH AN ELECTROLYTIC CELL CONTAINING AN ACID PLATING BATH OF AQUEOUS ELECTROLYTE SOLUTION INCLUDING TIN SALT AND FLUORINE IONS, A SOURCE OF THE FLUORINE IONS BEING A TIN-FREE ACIDIC FLUORINE COMPOUND PRESENT AS A COMPONENT OF THE ELECTROLYTE SOLUTION, ELECTRODEPOSITING A LAYER OF TIN ON THE STRIP WHILE THE STRIP IS IN CONTACT WITH THE ELECTROLYTE SOLUTION, THEREAFTER PASSING THE STRIP FROM THE PLATING BATH WITH TIN SALT-CONTAINING ELECTROLYTE SOLUTION CARRIED FROM THE PLATING BATH ON THE STRIP, RINSING THE STRIP WITH AN AQUEOUS RINSE SOLUTION TO REMOVE ELECTROLYTE SOLUTION INCLUDING TIN SALTS FROM THE STRIP BY ALTERNATELY SPRAYING THE AQUEOUS RINSE SOLUTION ONTO THE STRIP AND SQUEEZING THE RESULTING SOLUTION FROM THE STRIP, THE FIRST SPRAYING AND SQUEEZING OPERATION DILUTING THE CONCENTRATION OF TIN SALTS IN THE SOLUTION REMAINING ON THE STRIP AND EACH SUBSEQUENT SPRAYING AND SQUEEZING OPERATION FURTHER DILUTING THE CONCENTRATION OF TIN SALTS IN THE RESIDUAL SOLUTION REMAINING ON THE STRIP, THEREAFTER RINSING THE STRIP WITH AN AQUEOUS RINSE TO REMOVE RESIDUAL
Claim 2
Independent Claim
181 words
THE METHOD OF CONTINUOUSLY AND PROGRESSIVELY MANUFACTURING ELECTRO-TINPLATED STRIP COMPRISING THE STEPS OF PASSING STRIP THROUGH AN ELECTROLYTIC CELL CONTAINING AN ACID PLATING BATH OF AQUEOUS ELECTROLYTE SOLUTION INCLUDING TIN SALT AND FLUORINE IONS, A SOURCE OF THE FLUORINE IONS BEING A TIN-FREE ACIDIC FLUORINE COMPOUND PRESENT AS A COMPONENT OF THE ELECTROLYTE SOLUTION, ELECTRODEPOSITING A LAYER OF TIN ON THE STRIP WHILE THE STRIP IS IN CONTACT WITH THE ELECTROLYTE SOLUTION, THEREAFTER PASSING THE STRIP FROM THE PLATING BATH WITH TIN SALT-CONTAINING ELECTROLYTE SOLUTION CARRIED FROM THE PLATING BATH ON THE STRIP, RINSING THE STRIP WITH AN AQUEOUS RINSE SOLUTION TO REMOVE ELECTROLYTE SOLUTION INCLUDING TIN SALTS FROM THE STRIP BY ALTERNATELY SPRAYING THE AQUEOUS RINSE SOLUTION ONTO THE STRIP AND SQUEEZING THE RESULTING SOLUTION FROM THE STRIP, THE FIRST SPRAYING AND SQUEEZING OPERATION DILUTING THE CONCENTRATION OF TIN SALTS IN THE SOLUTION REMAINING ON THE STRIP AND EACH SUBSEQUENT SPRAYING AND SQUEEZING OPERATION FURTHER DILUTING THE CONCENTRATION OF TIN SALTS IN THE RESIDUAL SOLUTION REMAINING ON THE STRIP, THEREAFTER RINSING THE STRIP WITH AN AQUEOUS RINSE TO REMOVE RESIDUAL
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |