US3062726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic tin plate production
Assignee: Inland Steel Co
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Filing: 1958-08-21
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Granted: 1962-11-06
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Expires: 1978-08-21
Abstract
No abstract record available.
Inventors
- 👤 Uno T Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:40
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; C25D5/34; C25D5/36; C25D5/60; C25D5/623; Y; Y10; Y10S; Y10S205/00; Y10S205/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD FOR REDUCING THE POROSITY OF TIN COATING AND INCREASING THE CORROSION RESISTANCE OF A TIN-COATED STEEL BASE SHEET WHICH CONSISTS ESSENTIALLY OF COATING A STEEL BASE SHEET WITH A THIN, FIRST LAYER OF TIN TO PRODUCE A TIN-COATED, STEEL BASE SHEET, FUSING SAID FIRST LAYER OF TIN, QUENCHING THE TIN-COATED, STEEL BASE SHEET, APPLYING TO THE TIN-COATED SURFACES OF THE BASE SHEET A CHEMICAL ETCHANT CHARACTERIZED BY ITS ABLILITY TO RAPIDLY REACT WITH IRON AND IRON COMPOUNDS AND WITHOUT DELETERIOUSLY AFFECTING SAID TIN-COATED SURFACES AND SELECTED FROM THEORIC, GROUP OF ACIDS CONSISTING OF HYDROFLUORIC, FLUOPHOSPHORIC, BASE SHEET WITH A SECOND LAYER OF TIN.
Claim 2
Independent Claim
105 words
A METHOD FOR REDUCING THE POROSITY OF TIN COATING AND INCREASING THE CORROSION RESISTANCE OF A TIN-COATED STEEL BASE SHEET WHICH CONSISTS ESSENTIALLY OF COATING A STEEL BASE SHEET WITH A THIN, FIRST LAYER OF TIN TO PRODUCE A TIN-COATED, STEEL BASE SHEET, FUSING SAID FIRST LAYER OF TIN, QUENCHING THE TIN-COATED, STEEL BASE SHEET, APPLYING TO THE TIN-COATED SURFACES OF THE BASE SHEET A CHEMICAL ETCHANT CHARACTERIZED BY ITS ABLILITY TO RAPIDLY REACT WITH IRON AND IRON COMPOUNDS AND WITHOUT DELETERIOUSLY AFFECTING SAID TIN-COATED SURFACES AND SELECTED FROM THEORIC, GROUP OF ACIDS CONSISTING OF HYDROFLUORIC, FLUOPHOSPHORIC, BASE SHEET WITH A SECOND LAYER OF TIN.
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |