US3285790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of tin plate
Assignee: Youngstown Res and Dev Co
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Filing: 1964-06-04
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Granted: 1966-11-15
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Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 William B Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:41
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/02; C21D8/0221; C21D8/0236; C23; C23C; C23C2/00; C23C2/26; C23C2/261; C21D8/0247; C21D8/0273; C21D8/0278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A PROCESS FOR PRODUCTION OF TIN PLATE IN WHICH STEEL STRIP IS PLATED WITH A COATING OF TIN TO FORM TIN PLATE, THE INVENTION COMPRISING COLD ROLLING SAID TIN PLATE WHICH HAS NOT BEEN HEAT TREATED FOLLOWING FORMATION THEREOF TO REDUCE ITS THICKNESS AT LEAST 40% AND OBTAIN A THICKNESS BETWEEN SUBSTANTIALLY ABOUT 0.0088" AND 0.001", HEATING SAID COLD ROLLED TIN PLATE IN A NON-OXIDIZING ATMOSPHERE TO AND MAINTAINING SAME AT A TEMPERATURE OF SUBSTANTIALLY 1200* F. TO SUBSTANTIALLY 1800*F. TO EFFECT HEAT TREATING OF SAID TIN PLATE.
Claim 2
Dependent Claim
89 words
IN A PROCESS FOR PRODUCTION OF TIN PLATE IN WHICH STEEL STRIP IS PLATED WITH A COATING OF TIN TO FORM TIN PLATE, THE INVENTION COMPRISING COLD ROLLING SAID TIN PLATE WHICH HAS NOT BEEN HEAT TREATED FOLLOWING FORMATION THEREOF TO REDUCE ITS THICKNESS AT LEAST 40% AND OBTAIN A THICKNESS BETWEEN SUBSTANTIALLY ABOUT 0.0088" AND 0.001", HEATING SAID COLD ROLLED TIN PLATE IN A NON-OXIDIZING ATMOSPHERE TO AND MAINTAINING SAME AT A TEMPERATURE OF SUBSTANTIALLY 1200* F. TO SUBSTANTIALLY 1800*F. TO EFFECT HEAT TREATING OF SAID TIN PLATE.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |