US2839437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a dull finished fused tin coating
Assignee: Jones and Laughlin Steel Corp
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Filing: 1955-04-21
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Granted: 1958-06-17
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Expires: 1975-04-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Manko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:56
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/48; C25D5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF PRODUCING A DULL FINISHED FUSED TIN COATING ON ELECTROLYTIC TIN PLATE COMPRISING APPLYING TO THE MATTE TIN COATING A DILUTE AQUEOUS SOLUTION OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALIMETAL NITRITES, ALKALI METAL NITRATES, ALKALI METAL CHLORATES AND HYDROGEN PEROXIDE, AND MIXTURES THEREOF, DRYING THE SOLUTION ON THE TIN COATING, THEN HEATING THE TIN COATING TO A TEMPERATURE SUFFICIENT TO FLOW THE TIN, AND THEN QUENCHING THE TIN PLATE SO AS TO SOLIDIFY THE TIN COATING.
Claim 2
Independent Claim
82 words
A METHOD OF PRODUCING A DULL FINISHED FUSED TIN COATING ON ELECTROLYTIC TIN PLATE COMPRISING APPLYING TO THE MATTE TIN COATING A DILUTE AQUEOUS SOLUTION OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALIMETAL NITRITES, ALKALI METAL NITRATES, ALKALI METAL CHLORATES AND HYDROGEN PEROXIDE, AND MIXTURES THEREOF, DRYING THE SOLUTION ON THE TIN COATING, THEN HEATING THE TIN COATING TO A TEMPERATURE SUFFICIENT TO FLOW THE TIN, AND THEN QUENCHING THE TIN PLATE SO AS TO SOLIDIFY THE TIN COATING.
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |