US2758075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of tin
Assignee: EIDP Inc
•
Filing: 1951-10-15
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Granted: 1956-08-07
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Expires: 1971-10-15
Abstract
No abstract record available.
Inventors
- 👤 Donald A Swalheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:07
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
-0.055 PH-0.265 TO -0.055 PH-0.370
Claim 2
Dependent Claim
80 words
IN A PROCESS FOR THE ELECTRODEPOSITION OF STEEL STRIP TO MAKE TIN PLATE, THE STEPS COMPRISING PASSING STEEL STRIP THROUGH A STANNOUS BATH WHILE ELECTRODEPOSITING TIN THEREUPON AND INCIDENTALLY EFFECTING AGITATION AND AERATION OF THE BATH SO THAT IT CONTAINS DISSOLVED AND DISPERSED GASES, THE STANNOUS BATH BEING AN AQUEOUS BATH COMPRISING FROM ABOUT 37.5 TO 150 GRAMS PER LITER OF AN ALKALI FLUORIDE, AND FROM ABOUT 37.5 TO 150 GRAMS PER LITER OF STANNOUS CHLORIDE AND SATISFYING THE EQUATION:
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) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |