US2736648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low metalloid enameling steel and method of producing same
Assignee: United States Steel Corp
•
Filing: 1952-03-06
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Granted: 1956-02-28
•
Expires: 1972-03-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Eckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:33
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
LOW METALLOID ENAMELING STOCK CONTAINING LESS THAN .20% TOTAL METALLOIDS AND BETWEEN 903% AND 910% SILICON AND BETWEEN, .15% AND 935% TITANIUM WITH THE BALANCE SUBSTANTIALLY IRON, SAID SILICON AND TITANIUM COMBINING TO PREVENT FISH SCALES, BLACK SPECKS AND PULL THROUGH UPON APPLICATION OF A DIRECT LIGHT-COLOR VITEROUS ENAMEL TO SAID STOCK.
Claim 2
Dependent Claim
52 words
LOW METALLOID ENAMELING STOCK CONTAINING LESS THAN .20% TOTAL METALLOIDS AND BETWEEN 903% AND 910% SILICON AND BETWEEN, .15% AND 935% TITANIUM WITH THE BALANCE SUBSTANTIALLY IRON, SAID SILICON AND TITANIUM COMBINING TO PREVENT FISH SCALES, BLACK SPECKS AND PULL THROUGH UPON APPLICATION OF A DIRECT LIGHT-COLOR VITEROUS ENAMEL TO SAID STOCK.
References Cited (Backward Citations)
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Cited
US1704586A
Cited
US1555234A
Cited
US1839157A
Cited
US1911053A
Cited
GB409380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |